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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.

The Prince of Wales, now a popular watering hole of choice for thousands of thirsty Six Nations supporters, was previously a theatre and even an adult cinema.

From BBC • Apr. 18, 2026

“As an adult, I am really leaning in to being proud to be Chinese.”

From The Wall Street Journal • Apr. 17, 2026

This week she shared practical advice that any adult should follow: Show your love for your family by having these documents prepared.

From MarketWatch • Apr. 17, 2026

Three measles deaths were reported nationally last year — two among unvaccinated school-age children in Texas and one in an unvaccinated adult in New Mexico.

From Los Angeles Times • Apr. 16, 2026

They demanded the names of the adult ringleaders.

From "Hitler Youth: Growing Up in Hitler's Shadow" by Susan Campbell Bartoletti




Vocabulary lists containing adult