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Definitions

adult

[uh-duhlt, ad-uhlt] / əˈdʌlt, ˈæd ʌlt /
ADJECTIVE
being mature, fully grown
Synonyms
Antonyms


NOUN
a mature, fully grown person
Synonyms
STRONGEST
STRONG
grownup
WEAK
Antonyms


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.

We asked a group of economists and personal finance authors about financially supporting adult children—including their own.

From The Wall Street Journal • May 30, 2026

It’s a thrill to watch this kind of original, adult moviemaking that’s all too rare these days, and Roher hits all the right notes.

From Los Angeles Times • May 29, 2026

The team compared young, adult, and old fish, examining many aspects of protein production inside brain cells.

From Science Daily • May 29, 2026

The Home Office says the technology will make it easier to identify adult migrants "attempting to game the system", after initial testing indicated "promising performance and accuracy".

From BBC • May 28, 2026

He was more relaxed with Dr. Achebe than he had ever been with some new adult thrown into his life.

From "Boy 2.0" by Tracey Baptiste




Vocabulary lists containing adult


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