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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 teenagers said they had been pressured by the adult," another source close to the case added.

From Barron's • Apr. 1, 2026

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

From Los Angeles Times • Mar. 30, 2026

He notes that adult Uberabatitan individuals, unlike the younger specimen analyzed, likely faced the same challenges as other large sauropods when trying to stand upright.

From Science Daily • Mar. 30, 2026

The investigation centres on "possible unfair commercial practices" linked to the premature use of adult cosmestics, including "encouraging the compulsive purchase of face masks, serums and anti-aging creams" to children under the age of 10.

From BBC • Mar. 29, 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