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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:

Given these arrangements, is it any wonder that many graduates experience sticker shock on entering adult life?

From The Wall Street Journal Aug. 14, 2026

In adult brains, the researchers detected changes in myelination that could be traced to thicker myelin sheaths, particularly around thin axons.

From Science Daily Aug. 14, 2026

The young adult push comes as Netflix faces growing pressure from investors to increase the amount of time people spend on the service.

From Los Angeles Times Aug. 14, 2026

In an interview with AFP, she noted that few adult male elephants had died, even though they are the ones most likely to raid crops.

From Barron's Aug. 13, 2026

We had run long in a day—a hundred and fifty miles—with an adult team in good shape.

From "Woodsong" by Gary Paulsen

Bella Ramsey spent many teenage years working with adults so never really went through the moody, rebellious phase often associated with being a teenager.

From BBC Aug. 15, 2026

About 1 in 3 American adults have turned to a chatbot for health advice in the past year.

From The Wall Street Journal Aug. 14, 2026

The legislation establishing a right to assisted dying for some adults suffering from an incurable condition was passed by parliament in July after years of debate.

From Barron's Aug. 14, 2026

The new flu vaccine, manufactured by Moderna, is called mFLUSIVA and made for adults age 50 and up.

From Los Angeles Times Aug. 14, 2026

Apparently the children had understood far more about the family’s troubles than the adults in their lives imagined they did.

From "The Long-Lost Home" by Maryrose Wood




Vocabulary lists containing adult


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