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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.

After the war, he moved to Walsall, where he lived a large part of his adult life, and got married.

From BBC • Apr. 21, 2026

This suggests that the bees' defense may begin early in development, before adult behaviors play a role.

From Science Daily • Apr. 20, 2026

They’re also, undeniably, a portal into the adult world of the internet, which can pose all kinds of dangers.

From The Wall Street Journal • Apr. 20, 2026

The adult male pilot was pulled from the plane and taken to the hospital, the Los Angeles Fire Department said.

From Los Angeles Times • Apr. 20, 2026

The fame, adult praise, new clothes, and excitement of their celebrity were benefits that almost any teenager would love.

From "American Spirits" by Barb Rosenstock




Vocabulary lists containing adult