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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.

Janet Vigo, a nail-salon technician, prepared four boxes of adult diapers and a rechargeable fan for her 84-year-old bedridden grandmother, who recently broke her hip.

From The Wall Street Journal • Jun. 12, 2026

Coyotes and other canids serve as the primary hosts for adult tapeworms.

From Science Daily • Jun. 11, 2026

People she met included a widow estranged from her adult children over financial woes, who stored piles of their belongings at their mother's home.

From Barron's • Jun. 11, 2026

Though Anthony was 17 at the time of the murder on 2 April 2025, under Texas law he was able to be charged as an adult.

From BBC • Jun. 10, 2026

I’m just a seventh grader, and everybody else here is an adult, thought Natalie.

From "Two Degrees" by Alan Gratz




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