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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.

See Examples For:

He played piano and percussion as a child and later guitar as an adult, but “put all of that away for many years,” he said.

From Los Angeles Times Aug. 28, 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

Rather than crustacean larvae, the specimens were adult female insects.

From Science Daily Aug. 27, 2026

Their two recent books for adult readers make the impassioned case for reconsidering children’s literature.

From The Wall Street Journal Aug. 26, 2026

“After yesterday, I think you should have an adult with you.”

From "Caterpillar Summer" by Gillian McDunn

Traditionally, young adults have been likely to expect to rent during their early working years while they save up for a down payment to buy a home.

From MarketWatch Aug. 28, 2026

The NHS Alliance said the policy has led to an influx of new providers, helping to reduce some of the longest waits for adults and children, but at a cost.

From BBC Aug. 28, 2026

Nearly 6-in-10 young adults are “extremely or very concerned” about people’s ability to function for themselves, compared with only 46% of those 65-and-up.

From The Wall Street Journal Aug. 27, 2026

Similar to the other study, regular vitamin C supplements showed a reduction in severity of symptoms in children and adults by 8–14%.

From Science Daily Aug. 27, 2026

The bars were spaced too far apart, since it was made for adults.

From "Hopping Mad (The Hardy Boys: Secret Files, #4)" by Franklin W. Dixon




Vocabulary lists containing adult


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