Thesaurus.com
Dictionary.com
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.

Janet Vigo, a nail-salon technician, prepared four boxes of adult diapers and a rechargeable fan for her 84-year-old bedridden grandmother, who recently broke her hip.

From The Wall Street Journal • Jun. 12, 2026

However, the change in the law does not recognise adult convictions, so those will remain.

From BBC • Jun. 12, 2026

Coyotes and other canids serve as the primary hosts for adult tapeworms.

From Science Daily • Jun. 11, 2026

Social media services, including adult content platforms, would also face new requirements under the law to "mitigate risks associated with exposure" to various categories of harmful content and apply labels to synthetically generated content.

From Barron's • Jun. 10, 2026

Aunt Melissa offers me a sympathetic smile, and I’m glad one adult at the table is happy for me.

From "South of Somewhere" by Kalena Miller




Vocabulary lists containing adult


Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "adult" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com