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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.

Prosecutor Michael Robertson asked Belov: "You were the adult in this situation, you could have just walked away couldn't you?"

From BBC • Jun. 11, 2026

Eight existing prisons have been tasked with preparing special sections for children, where they will be kept separate from adult inmates.

From Barron's • Jun. 11, 2026

Without any negative information, a starting credit score could be in the “good” range, and then whether it moves up over time to “very good” or “exceptional” will be up to the new adult.

From MarketWatch • Jun. 9, 2026

Apple unveiled new child accounts and a comprehensive redesign of its parental controls settings that can more easily be set to block adult websites and only allow age-appropriate media.

From The Wall Street Journal • Jun. 8, 2026

Her hair was up, and that made her an adult right there.

From "The Teacher’s Funeral" by Richard Peck




Vocabulary lists containing adult


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