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Definition of immature

immature

/ˌɪm.əˈtʃʊər/
im · ma · ture
Adverb:immaturely
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immature Lexical Profile

immature Game Scores & Validity

• adjective

1

Having or showing an emotional or intellectual development appropriate to someone younger; childish or lacking adult judgment.

Example

"Laughing during a serious presentation was a rather immature way to react."

2

Not fully developed, grown, or ripe (especially of an organism, fruit, or physiological structure).

Example

"Immature bald eagles have dark brown plumage and do not develop their characteristic white heads until about five years of age."

Synonyms
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Antonyms
View all antonyms for immature

• Rhymes for immature

• Nearby Words

immaculateness
immaterial
immaterially
immature
immaturely
immaturity
immeasurability

Word Origin & Etymology

Borrowed in the mid-16th century from Latin immaturus, meaning 'unripe' or 'untimely', formed from the privative prefix in- ('not') and maturus ('ripe, timely').

Cite this Entry

Wordmom. (2026). Definition of Immature. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/immature
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