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Added 9 October 2026

immature

/ɪməˈtjʊə(ɹ)/ adjective

In Latin: immātūrus Wiktionary

adjective Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about immature at Wordnik → Where our words come from →

Characteristic of a lack of maturity.
immature behavior
(used of living things especially persons) in an early period of life or development or growth.
young people
Not fully developed or mature; not ripe.
unripe fruit

Origin

From Middle French immature. Partially displaced unripe, from Old English unrīpe (“unripe, immature”).

From Wiktionary, via Kaikki.org (CC BY-SA)

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