Thesaurus.com
Dictionary.com
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.

Single older adults without adult children are particularly at risk.

From MarketWatch • Apr. 14, 2026

Pereira, who runs the financial tech company, says his longevity offers a glimpse to his own adult sons about what life can be like in their eighth decade.

From The Wall Street Journal • Apr. 13, 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

Like Andre and I are the children and she’s the adult, even though she’s only seventeen.

From "South of Somewhere" by Kalena Miller




Vocabulary lists containing adult