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.

The Prince of Wales, now a popular watering hole of choice for thousands of thirsty Six Nations supporters, was previously a theatre and even an adult cinema.

From BBC • Apr. 18, 2026

After stonewalling every adult who tells him to open up, Robby does just that with an orphaned infant, saying that he, too, was abandoned by his mother as a child.

From The Wall Street Journal • Apr. 17, 2026

Orange County has reported a measles case in a young adult who potentially exposed people at a gym and urgent care center in Ladera Ranch, as well as a case in a toddler.

From Los Angeles Times • Apr. 16, 2026

We are both in our early 50s, and we both have adult children.

From MarketWatch • Apr. 16, 2026

An adult male medium was seen floating across a sixty-foot space balanced only on another man’s fingertips.

From "American Spirits" by Barb Rosenstock




Vocabulary lists containing adult