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1

grown–up

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adjective \ˈgrōn-ˌəp\

Definition of grown–up

  1. 1 :  not childish or immature :  adult

  2. 2 :  of, for, or characteristic of adults insisted on wearing grown–up clothes

See grown–up defined for English-language learners

See grown–up defined for kids

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First Known Use of grown–up

1633

grown–up Synonyms

Synonyms
grown-up, mature
Antonyms
adolescent, immature
Near Antonyms
childish, infantile, kiddish
2

grown–up

noun

Definition of grown–up

  1. :  adult

See grown–up defined for English-language learners

First Known Use of grown–up

1813

grown–up Synonyms

Synonyms
grown-up
Related Words
middle-ager; ancient, elder, gaffer, graybeard, oldster, old-timer, senior, senior citizen
Near Antonyms
bairn [chiefly Scottish], child, cub, kid, moppet, tad, toddler, tot, tyke (also tike); baby, infant; adolescent, juvenile, minor, youngling, youngster, youth; preteen, preteen-ager, teen, teenager, teener, teenybopper, tween

GROWN–UP Defined for English Language Learners

grown-up

play
adjective

Definition of grown–up for English Language Learners

  • : no longer young : fully grown

  • : suitable for adults

  • : like an adult

grown-up

noun

Definition of grown–up for English Language Learners

  • : a person who is fully grown

GROWN–UP Defined for Kids

1

grown–up

play
adjective \ˈgrōn-ˌəp\

Definition of grown–up for Students

  1. :  1adult

2

grown–up

play
noun

Definition of grown–up for Students

  1. :  an adult person

Learn More about grown–up

  1. See words that rhyme with grown–up Spanish Central: Translation of grown–up

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