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Synonyms

grown-up

American  
[grohn-uhp] / ˈgroʊnˈʌp /

adjective

  1. having reached the age of maturity.

  2. characteristic of or suitable for adults.

    grown-up behavior; grown-up fiction.


grown-up British  

adjective

  1. having reached maturity; adult

  2. suitable for or characteristic of an adult

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. an adult

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • grown-upness noun

Etymology

Origin of grown-up

First recorded in 1625–35; adj. use of verb phrase grow up

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A place where one can come for the fantasy, and stay for the chicken etouffee and the Hex Breaker, a tiki-style, rum-heavy drink for grown-up sorcerers.

From Los Angeles Times

Maybe your parents insisted you eat your vegetables before your dessert, but now that you’re a grown-up, you can treat yourself first: Take your downtime at the beginning of the day, before you tackle your job.

From The Wall Street Journal

“I mean, I really, really want to make the basketball team. But even if I make it in seventh and eighth grades, then there’s high school to deal with. Whoa. And then there’s college, and being a grown-up. It’s all pretty scary, don’t you think?”

From Literature

“You know. If you’re going to get all worried about being a grown-up, you might as well figure out what’s going to happen when you’re ninety years old and you die,” Jonah said.

From Literature

“When you’re a grown-up,” Jonah said, “you can try to find your birth parents. You won’t need your mom and dad’s permission for anything then. And until then—until then, I swear, I’ll do everything I can to help you.”

From Literature