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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.

See Examples For:

Whether it continues to happen in the adult human brain, however, has been a subject of scientific debate for decades.

From Science Daily ● Oct. 27, 2026

An adult turning 65 today can expect to live nearly two more decades, according to the Centers for Disease Control and Prevention.

From MarketWatch ● Oct. 27, 2026

That distinction is particularly important because research on adult neurogenesis has attracted considerable public attention, sometimes leading to claims that go beyond what scientists have demonstrated.

From Science Daily ● Oct. 27, 2026

Addison Zegan, 36, a self-proclaimed Disney adult who runs the Disneylanders Instagram and Spotify accounts, was at California Adventure when he heard thunder and lightning around 7 p.m.

From Los Angeles Times ● Oct. 24, 2026

After the war Inge Scholl married Otl Aicher, and they founded a school for adult education in the city of Ulm.

From "Hitler Youth: Growing Up in Hitler's Shadow" by Susan Campbell Bartoletti

"Around 30 percent of older adults who develop Alzheimer's disease never experience its symptoms," says Evgenia Salta, senior author of the research.

From Science Daily ● Oct. 27, 2026

Personal-finance education might not help students get rich quick, but researchers say it can keep young adults from making costly missteps and help them build resilience to withstand financial emergencies.

From MarketWatch ● Oct. 26, 2026

Some, like my husband, seek therapy as adults.

From Slate ● Oct. 26, 2026

The company said the medicine was approved to reduce the risk of stroke in adults after a noncardioembolic ischemic stroke or high-risk transient ischemic attack—when the blood supply to the brain is disrupted.

From The Wall Street Journal ● Oct. 26, 2026

The funny thing is, while she was busy inventing whatnots, all sorts of important adults were worried about what would happen if androids took over too many human jobs.

From "The School for Whatnots" by Margaret Peterson Haddix


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