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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.

And yet, a few Red Hot bangers manage to endlessly caravan in and out of lives because they’re in constant rotation on Jack FM and other adult contemporary radio stations: “Give It Away.”

From Salon • Apr. 4, 2026

My adult children received a legacy from a relative they loved, and the overall taxes will be lower.

From The Wall Street Journal • Apr. 3, 2026

The proposal included plans to release 30 adult beavers, likely as 15 pairs, with any additional dependent kits in their family groups, which could take the total up to 50.

From BBC • Apr. 3, 2026

For those weighed down by adult concerns, watching an episode leaves them feeling uplifted.

From Los Angeles Times • Mar. 30, 2026

Each adult chicken will drink approximately 2 cups of water per day.

From "Unusual Chickens for the Exceptional Poultry Farmer" by Kelly Jones