Adult — Meaning, Definition & Synonyms

adjective noun verb /ə-ˈdəlt/

Meaning & Definition of Adult

Adult (adjective)

  1. fully developed and mature, grown-up
  2. of, relating to, intended for, or befitting adults
  3. dealing in or with explicitly sexual material

Adult (noun)

  1. one that is adult; especially, a human being after an age (such as 21) specified by law

Adult (verb)

  1. to behave like an adult, to attend to the ordinary tasks required of a responsible adult
  2. to become an adult

Word Forms of Adult

Inflections: adulted, adulting, adults

Derived words: adulthood (noun), adultly (adverb), adultness (noun), adultlike (adjective)

Origin & Etymology of Adult

borrowed from French & Latin; French adulte, going back to Middle French, borrowed from Latin adultus, from past participle of adolēscere, adulēscere "to become mature, grow up," from ad- ad- + alēscere "to be nourished, grow up," probably inchoative derivative of *alēre "to grow," stative derivative of alere "to nurse, feed, nourish" old:1

First known use: 1531

Vocabulary Lists & Topics for Adult

  • Topics: Family & People

Words & Phrases Containing Adult

Frequently Asked Questions about Adult

What does "Adult" mean?

"Adult" means fully developed and mature, grown-up. As an an adjective, a noun and a verb, it is defined as: fully developed and mature, grown-up. It has 6 distinct senses.

Is "Adult" a noun, verb, or adjective?

"Adult" can be used as an adjective, a noun and a verb, depending on the context.

How do you pronounce "Adult"?

"Adult" is pronounced /ə-ˈdəlt/.

What is the origin of the word "Adult"?

"Adult" comes from borrowed from French & Latin; French adulte, going back to Middle French, borrowed from Latin adultus, from past participle of adolēscere, adulēscere "to become mature, grow up," from ad- ad- + alēscere "to be nourished, grow up," probably inchoative derivative of *alēre "to grow," stative derivative of alere "to nurse, feed, nourish" old:1. First known use: 1531.

What does "Adult" mean as an adjective?

As an adjective, "Adult" means: fully developed and mature, grown-up; of, relating to, intended for, or befitting adults; dealing in or with explicitly sexual material.

What does "Adult" mean as a noun?

As a noun, "Adult" means: one that is adult; especially, a human being after an age (such as 21) specified by law.

What does "Adult" mean as a verb?

As a verb, "Adult" means: to behave like an adult, to attend to the ordinary tasks required of a responsible adult; to become an adult.

What topics is "Adult" used in?

"Adult" is commonly used in topics such as Family & People.