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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.

It shifts the bill from aging parents to their adult children by impacting these caregivers’ own capacity for wealth building,” Forden said.

From MarketWatch • Apr. 14, 2026

Traditional custodial accounts are available at most brokerages and let an adult, usually a parent, manage an account on behalf of a child of any age.

From The Wall Street Journal • Apr. 14, 2026

The average adult produces more than a liter of urine and over 100 grams of poo each day.

From Science Daily • Apr. 13, 2026

“Active adult and move-up segments have outperformed relative to the entry-level, where affordability concerns remain intense,” he says.

From Barron's • Apr. 12, 2026

For what child does not like being treated kindly by an adult?

From "The Unseen Guest" by Maryrose Wood




Vocabulary lists containing adult