DictionaryidiomaticNatural language use
adjective

idiomatic

id-ee-uh-MAT-ik/ˌɪdiəˈmætɪk/

Natural and typical of how a language is used.

The friend's idiomatic reply of No problem sounds natural in casual conversation.

Two relaxed adult friends speaking naturally at cafe; one offers thanks and the other says only 'No problem' in a small functional speech bubble.
Etymology

Greek idiōmatikos meant “peculiar” or “characteristic.” In language, this became the idea of expression characteristic of a particular language—what sounds natural in its own usage.

In context

CNCF [Cloud Native Computing Foundation]33:17
provide a very fluent natural idiomatic programming experience that is tailored to that language so it will be attractive it will feel natural to developers in that language
CNCF SIG Security 2020-05-27

More examples

  • The sentence is grammatically correct but not idiomatic.
  • In idiomatic English, we say "make a decision," not "do a decision."
  • Listening to everyday conversations helps me write more idiomatic Spanish.

Forms

idiomatic

idiomatically adverb — In a way natural to a language.

Similar words

natural
Describes language that feels unforced, without specifically emphasizing established usage.
fluent
Emphasizes smooth, effortless expression rather than typical wording.