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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.

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"Among adult men in this nationally representative U.S. population, those who consumed higher amounts of UPFs had significantly higher risks of the subsequent development of prostate cancer," said Charles H. Hennekens, M.D.,

From Science Daily Aug. 27, 2026

An adult purple gallinule has a bright purple and green body with a pale blue marking that resembles a shield above its red and yellow bill.

From Los Angeles Times Aug. 27, 2026

The panel of doctors, academics, youth representatives and parents recommended no screens at all for babies and toddlers, and that children up to 12 should only be allowed "age-appropriate social media" under adult supervision.

From Barron's Aug. 27, 2026

Children’s books, revisited with adult eyes, can be a kind of tonic.

From The Wall Street Journal Aug. 26, 2026

“Attention, everyone!” a loud adult voice rang out.

From "Trouble at the Arcade (The Hardy Boys: Secret Files, #1)" by Franklin W. Dixon

A 2025 Pew survey found that a majority of adults believed all-day bans would improve students’ grades, social skills and classroom behavior.

From The Wall Street Journal Aug. 29, 2026

Although children are more vulnerable than adults, they have the same right to free expression, he said.

From Los Angeles Times Aug. 29, 2026

The Old Navy Global segment offers clothing and accessories for adults and children.

From MarketWatch Aug. 28, 2026

No one is claiming the settlement is a silver bullet, but it's likely Meta and its fellow social media companies will continue to face scrutiny over the safety of children and adults on its platforms.

From BBC Aug. 27, 2026

They both wore tightly wrapped robes and the groggy, distressed expressions of adults who hadn’t expected to be awakened.

From "The School for Whatnots" by Margaret Peterson Haddix




Vocabulary lists containing adult


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