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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:

Home nations rivals England have their most expensive adult home shirt on sale for £134.99, while Scotland's is £75.

From BBC Aug. 7, 2026

Once you settle all that, then you can think about your adult children.

From MarketWatch Aug. 6, 2026

He said the purpose was to give a young person "some resources for when they became an adult so that it would actually give them a good start".

From BBC Aug. 6, 2026

Lynn Nguyen, Chinatown’s young adult librarian, has taken to delivering groceries door to door since 2022.

From Los Angeles Times Aug. 4, 2026

He was more relaxed with Dr. Achebe than he had ever been with some new adult thrown into his life.

From "Boy 2.0" by Tracey Baptiste

For myself and other younger adults, this particular point in our financial lives can feel confusing, even overwhelming.

From The Wall Street Journal Aug. 7, 2026

During closing arguments, prosecutor Linda Singer told jurors that Meta's algorithms had directed adults toward content posted by teenage users while the company concealed internal findings about the risks to young people.

From Barron's Aug. 7, 2026

The FDA greenlit mFlusiva for adults age 50 and up, and Moderna wants to have it available for the coming flu season—that is, a few months from now.

From Slate Aug. 6, 2026

In the South West, much of the local employment is in farming or tourism, with young adults looking to leave and build their careers elsewhere.

From BBC Aug. 6, 2026

When adults tell a child or a teenager that they’re precocious, what they’re really saying is, “Please don’t say that aloud.”

From "The Bletchley Riddle" by Ruta Sepetys and Steve Sheinkin




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