Entering Adulthood | Happy 18th Birthday!
18th birthday is indeed a unique and remarkable birthday in a young person’s life, since it marks a transition into adulthood as well as independence. Whether the celebrant is your child, relative, friend or an acquaintance, creating really nice and heart-felt messages can put a loving smile on his or her face. The best part is, you don’t have to look far to draw inspiration on the best wordings to create for the celebrant’s special day.
Our rich resource of 18th birthday greetings will surely offer you the inspired words you need to put down on a card for a girl, daughter, son, boyfriend, girlfriend, sister, brother, or friend who just became an adult.
- 1 Funny 18th Birthday Wishes
- 2 Happy 18th Birthday, Girl!
- 3 18th Birthday Wishes for my Girlfriend
- 4 18th Birthday Wishes for my Boyfriend
- 5 Happy 18th Birthday, Daughter!
- 6 Happy 18th Birthday, Son!
- 7 18th Birthday Messages from Sister to Sister
- 8 18th Birthday Greetings from Brother to Sister
- 9 18th Birthday Wishes from Brother to Brother
- 10 18th Birthday Wishes from Sister to Brother
- 11 18th Birthday Wishes for my Brother
- 12 Happy 18th Birthday, Niece!
- 13 Happy 18th Birthday, Nephew!
- 14 Happy 18th Birthday Memes
Funny 18th Birthday Wishes
- The days of baby-sitting are over! It’s now time to start acting like an adult, the one you’ve just become. Have a blast while you’re still not paying taxes.
- Welcome to adulthood, and that means welcome to responsibilities. Enjoy this last carefree day of your life! #nostress
- Happy Birthday! Now you are finally perfectly legal to continue doing everything you’ve been doing for the past five years!
- I know you are now someone who no longer needs to be told what to do but I do hope you have an amazing birthday!
- Have a great and responsible birthday! Guess what this means? You’re officially an adult! You can now get a job, start paying your own car insurance, and vote! Lucky you!
- Happy Birthday! Today is your first day of adulthood! Get out there and live it up! So many fun things to do now! Nah, not really. You get to pay your own bills and that’s about it.
- Congratulations! You are officially an adult now! Get out there and have as much fun as humanly possible! You deserve all the happiness and success in the world!
- Welcome to Adulthood! The first day of the rest of your life has just begun! You better hang on because it’s going to be one heck of a bumpy ride and it’s not a ride you can just jump off.
- From one adult to another: Hahahahahaha! It’s all been a farce. Being an adult is not all late nights and no curfews. It’s hard work being an adult! However, don’t worry, happy Birthday and best of luck to you!
- The days of doing mindless baby things are over. It’s now time to start doing mindless adult things.
- I’m happy you’re finally 18! You now have your own part to play in running the home.
- Now that you’re finally an adult, no more pampering – you can do all the cleaning up by yourself. Welcome to adulthood!
Happy 18th Birthday, Girl!
- Though still a teen at eighteen, you are now considered an adult. Welcome to adulthood! Best wishes on your birthday.
- Happy birthday to a wonderful and beautiful girl. Welcome to the privileged and overworked world of adults, girl!
- It’s time to start taking responsibility, girl. (Although I’ve considered you’ve been a true decision-maker for some time now.)
- You’ve finally come of age today. Ensure you maximize your adulthood in the most positive way from henceforth.
- Happy birthday to the Big Girl at 18! Many happy returns on your special birthday.
18th Birthday Wishes for my Girlfriend
- Girl, today is a very special day in your life as you turn 18. Much love from me. Happy birthday.
- This remarkable day in your life requires remarkable things, which is why I’m sending you the best birthday wishes from the depth of my heart and with much love.
- I loved you as a tender, young girl. And now you’ve come into adulthood, I love you even more. Happy birthday, my sweet babe.
- Since a month ago, I’ve marked this special day in my diary, because I want to be the first person to say happy 18th birthday to my one and only beautiful girl!
- Girl, I’m happy you came into my life. Happy birthday and enjoy being officially a responsible adult woman!
- Welcome to the club girl, the adulthood club! Happy birthday and have a blast.
18th Birthday Wishes for my Boyfriend
- My special boy has come into adulthood today. I celebrate this special day with you, with lots of love.
- You’ve always been loving and special. And, now that you’ve come into full adulthood, I know that your love and care will get even better. Happy birthday to my dearest!
- It doesn’t matter how older you become, I will always love you. Happy 18th birthday to my one and only boyfriend.
- The day that you will stop being my sweetest guy will never come, no matter how older you become. Happy 18th birthday to my sweetest guy!
- I’m happy we are together as you come to full adulthood. I promise to be there with you and for you all the way, to the very end! Happy birthday to my dearest boy.
Happy 18th Birthday, Daughter!
- My baby girl has come to adulthood today. You are still my beautiful baby no matter how old you become. Happy 18th birthday to my sweetest girl.
- I’m happy you’ve come to the age of responsibility and complete accountability. Go ahead and make the most of it, girl. Happy birthday.
- Happy 18th birthday to a wonderful daughter. I’ve been lucky to see a sweet girl turn into a woman!
- It was just like yesterday when you came into our lives. Now, you’re a full adult. I will always love you, my sweet girl. My best wishes!
- Wishing our beautiful daughter a fabulous 18th birthday. We are so lucky God made you ours and no one else’s. As we celebrate you today, do know that we will always be there to help you turn all your goals into reality.
- I find it very hard to believe that my sweet little angel is turning 18 today! Sweetheart, you might have finally outgrown my laps, but nothing will ever make you to outgrow my heart. I love you dearly, my little angel.
- I wish you an exceptional 18th birthday celebration. I hope every blessed day of your life as an 18-year-old is filled with happiness and good health. I love you more than the air I breathe. God bless you, my sweet daughter.
- You might have just become a woman today, but to us, you will always be our adorable and sweet little child. Our love for you is not only larger than the universe itself, but is also endless. Happy birthday, sweet angel.
- My sweet angel, why do you have to grow up so fast? Happy birthday to a woman who will always be the little girl I’ve brought to this life.
- From the very first day you came into our world, we knew you were going to fill our lives with unlimited joy. How right we were! You make us the happiest and proudest parents in the world. Thank you for being the best thing in our lives. Happy birthday, sweet daughter.
- Welcome to the exciting world of womanhood, my dear daughter. I hope your voyage into adulthood is forever accompanied by happiness and good fortune.
- A precious daughter like you means more to me than all the power and wealth of this world combined. I l love you in a way that my lips can never express in words.
- Wishing a fabulous 18th birthday to the most beautiful maiden in the entire world. You must have been sent from up above to fill my life with all the happiness that exists in this universe. Thank you for the joy you bring me.
- May your 18th birthday bring you all the wonderful things in life you have been dreaming of. Have a great one, my beloved daughter.
- Happy 18th birthday to the most beautiful princess in the world. Angel, how I wish you could someday see how I see you through these eyes of mine, only then would you know how much you truly mean to me. May your life always be surrounded by good friends, beauty and happiness.
Happy 18th Birthday, Son!
- You are now a full-grown man, my dearest boy. Welcome to adulthood and have a glorious rest of your life! Happy bday!
- Our big boy is now a full adult. It’s time to shoulder responsibilities on your own, and I know you won’t let us down. Happy 18th birthday to a wonderful son.
- Son, we’ve always loved you, from your conception to your birth, up to this moment. And, we will never stop loving you no matter how older you become. Best wishes on your 18th birthday.
- It is with great love and joy that we welcome you into adulthood as you turn 18 today. Maximize the best that life holds in stock for you!
- Boy, I know you could barely wait to attain the ‘Big Boy’ age. I’m happy you’re finally 18 today. Reach out for the best that your adulthood life has in stock for you. Warm and loving wishes on your special birthday.
- You have lived a wonderful 18 years as a minor. May your life as an adult be just as wonderful. Happy birthday, son!
- May your future shine brighter than a trillion diamonds put together. I love you from the deepest part of my soul.
- On this exceptionally memorable day of your life, my advice for you is to always remain optimistic and never stop believing in yourself. Happy birthday, my dearest son.
- Happy birthday, dear son. You might have officially become an adult today, but to me, you’ll never stop being my sweet baby boy. I will always be there to protect you and help you navigate the turbulences of life.
- Son, you are my life. Your happiness is my top priority in life. Happy 18th birthday to you.
- From the very day the doctor placed you in my arms, I promised to dedicate my life to making you happy. That’s a promise I can never break even if I tried.
- Today is a special day for not only you, Son, but also for us, your parents. 18 is a very special phase of anyone’s life. Today, we are bursting with pride as we watch you transform into the man we always hoped you’ll be. God bless you, our precious son.
- On your 18th birthday, we just want to thank you for constantly bringing joy into our hearts and making us proud. We promise to always be there for you as you take your first step into the world of adulthood. Congrats on turning 18, dear son.
- Son, you might have turned 18 today, but in my eyes, you’ll never grow up to me. I love you today, tomorrow, and for the rest of my life on earth.
18th Birthday Messages from Sister to Sister
- Happy Birthday to my baby sister! You don’t automatically become a cool adult like me now that you’re 18. It’s something you still have to work very, very hard for. It’s not easy being this awesome!
- Happy Birthday to someone who has the greatest sister in the world! May your 18th Birthday be just as amazing as you are!
- Happy Birthday Sister! You are not only my favorite sister, you are my only sister!
- Congratulations! You’ve officially made it to 18 years old! I never thought this day would come! Happy Birthday, Sister! You did it!
- It’s hard to believe you are 18 years old! It seems like yesterday we were two kids playing Barbie dolls and talking on our pretend iPhones. Happy Birthday, Sister! May you have the best day ever and may we have many, many more years of fun girls nights!
- I am so blessed to be able to call you my sister and best friend. You are an amazing woman and I wish you a very happy birthday!
- I couldn’t ask for a sweeter, nicer sister! You are my sister but first and foremost you are my best friend. Happy 18th Birthday, Sister!
- To My Sister: You are beautiful, talented, and so funny. I’m so proud of the young woman you have become. I look forward to many more years of fun, late night chats and movie nights with you!
18th Birthday Greetings from Brother to Sister
- Happy Birthday! I hope you make the most of your special 18th birthday celebrations because…it’s all down hill from here.
- Adulthood is definitely not as fun as it looks. The undereye circles from late nights studying, the premature grey hair brought on by the stress of a late student loan payment, having to pay to get the dent in your hood fixed—out of your own pocket. But, there’s no going back now! You are here to stay! Welcome to adulthood.
- Happy Birthday, my beautiful sister! The future is in your hands. I wish you an entire lifetime of success and happiness.
- My cute, little sis is now a big girl! Congratulations on your adulthood debut! Best wishes <3
- Sis, you’ve become like one of us today – a full adult. So, take responsibility for your actions from henceforth. Heart-felt wishes on your 18th birthday.
- Happy 18th birthday to a wonderful sister who’ll be even more wonderful if she buys me things I can’t buy now that she’s officially an adult!
- Sis, have a swell time on your special day. Have a blast and enjoy every single one of those 18 candles on your birthday cake.
- 18 hearty cheers to a dear sister as she turns 18 today!
18th Birthday Wishes from Brother to Brother
- Brothers who become best friends are extremely rare. Thanks for being a wonderful brother to me and my best friend in the entire world.
- On your Big Day, my wish for you is that none of your dreams will fail to come to pass. Can’t wait to party tonight with you tonight, brother!
- Congrats on turning eighteen. You better be of your best behavior because now Mom and Dad can lawfully kick you out of the house. Anyway, enjoy every single second of being 18. Happy birthday.
- Welcome to the first day of the rest of your life as an adult. I hope your journey throughout this exciting time of your life is exactly as you imagined it would be. Happy birthday, dearest brother.
- Dear brother, on your 18th birthday, all I ask for from God is that He will help turn all your aspirations and dreams into reality. May every day of your life as an adult be sunny and happy.
- Happy birthday, my beloved brother. Now is the time to get up from your dreams and take action to make them come true. I believe in you, and I believe you’ll achieve wonders in life.
- Congratulations on your 18th birthday, dear brother. I know you have waited for so long with breathless anticipation for this day. I’m so glad it’s finally here. I hope your birthday bash is a memorable event.
18th Birthday Wishes from Sister to Brother
- Wishing my sweet brother a super exciting 18th birthday celebration. Today, you officially become a man. I’m so proud of the man you have turned out to become. God bless you, my dear.
- May every day of your life in the club of adults be glorious. And don’t forget to celebrate this special day in style. I love you so much.
- Being your sister, I consider it my sisterly duty to officially welcome you into adulthood. I hope you don’t miss all the excitement and fun that accompany this age, dear brother.
- I hope you can live every day of this new chapter of your life like it is Christmas. Wishing you the best!
- God blessed me in the greatest way possible the day He made you my brother. May every blessed day of yours be as wonderful as you are to me.
- Wishing a super duper happy 18th birthday to my dearest brother. I pray that every moment of your life as an adult will be deliciously sweet. Love you bunches!
- No matter how bad my day is, you have a way of putting a smile on my face. You mean the world to me, dear brother. Love you and happy bday!
18th Birthday Wishes for my Brother
- You are now a big bro! Best wishes on your 18th birthday.
- Bro, I wish you the best that life can offer as you make this giant stride into adulthood. Happy eighteenth birthday.
- I want to announce to the whole world that my sweet brother is 18 today! Best wishes on your birthday, my sweet brother.
- Now that you can make your own decisions and exercise your right as an adult, ensure you make only the right decisions always. Warm wishes on your 18th birthday.
Happy 18th Birthday, Niece!
- May you have the brightest, most magnificent day imaginable! Happy 18th Birthday to the girl with the greatest Aunt and Uncle!
- Happy Birthday, Niece! A beautiful life is out there waiting for you to bless it with your beauty, laughter, and intelligence!
- Happy Birthday to my beautiful niece! May your day be filled with plenty of love, laughter, and delicious cake!
- May you have the greatest day of your life! Today is going to be amazing! Enjoy your very first day of adulthood!
- Roses are red. Violets are blue. I love my niece. Happy Birthday to you!
- Happy Birthday to someone with the most incredible aunt! You are the big 1-8 today! I hope adulthood treats you wonderfully!
- Best Wishes on your brilliant birthday! You are officially 18 years old! Where did the time go? May every second of your birthday be absolutely fantastic! Happy Birthday, my beautiful niece!
- Sweet Niece, it’s not every day that you will get to turn 18 years old. Enjoy every second of it!
Happy 18th Birthday, Nephew!
- Happy Birthday to one cool dude! I’m so proud to call you my nephew!
- Happy Birthday to someone with the greatest Uncle in the world! May your day be absolutely fantastic!
- To my wonderful nephew, may you have an amazing birthday. It’s not every day you get to turn 18 so get out there and enjoy it!
- 18 is a magical age that leads to wonderful things! You’ll find new doors open for you and bills on the counter waiting for you. Oh the joys of being an adult.
- Grab all the dreams in front of you and seize all the opportunities presented to you! Happy 18th Birthday my brilliant nephew!
- Roses are red. Violets are blue. You have no idea what I got in store for you! Happy 18th Birthday to my nephew! Let’s hit the town and celebrate your big day!
- To quote The Black-Eyed Peas, “Let’s Get This Party Started!”. Happy Birthday to my awesome nephew! You are amazing!
Happy 18th Birthday Memes
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