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Showing results for adult.
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.

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

Researchers analyzed registry data covering the entire adult population of Sweden to explore new ways of identifying melanoma risk.

From Science Daily • Apr. 15, 2026

Despite this, Lynn went on to gain a degree and a PHD - and is now an adult advisory board member at the Dyscalculia Network.

From BBC • Apr. 15, 2026

Single older adults without adult children are particularly at risk.

From MarketWatch • Apr. 14, 2026

“You were always clinging. Onto your mother, onto whichever adult was caring for the littles that season. Dahlia and I joked that your chosen name should be Ivy, because of how tightly you clung.”

From "The Wrong Way Home" by Kate O’Shaughnessy




Vocabulary lists containing adult