First Known Use: 1548
Dictionary
immature
adjective im·ma·ture \ˌi-mə-ˈtu̇r, -ˈtyu̇r, -ˈchu̇r\
: not fully developed or grown
: acting in a childish way : having or showing a lack of emotional maturity
Full Definition of IMMATURE
1
archaic : premature
2
a : lacking complete growth, differentiation, or development <immature fruits> <a sexually immature bird> b : having the potential capacity to attain a definitive form or state : crude, unfinished <a vigorous but immature school of art> c : exhibiting less than an expected degree of maturity <emotionally immature adults>
— immature noun
— im·ma·ture·ly adverb
— im·ma·tu·ri·ty \-ˈtu̇r-ə-tē, -ˈtyu̇r-, -ˈchu̇r-\ noun
See immature defined for English-language learners
See immature defined for kids
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Origin of IMMATURE
Latin immaturus, from in- + maturus mature
Related to IMMATURE
Rhymes with IMMATURE
amateur, aperture, armature, blackamoor, carrefour, carte du jour, coinsure, commissure, confiture, connoisseur, coverture, curvature, cynosure, embouchure, epicure, filature, forfeiture, garniture, geniture, green-manure, haute couture, insecure, ligature, manicure, overture, paramour, pedicure, plat du jour, portraiture, prelature, premature, quadrature, reassure, Reaumur, reinsure, saboteur, sepulture, sequitur, signature, simon-pure, sinecure, soup du jour, tablature, temperature, to be sure, troubadour, white amur, Yom Kippur
IMMATURE Defined for Kids
immature
adjective im·ma·ture \ˌi-mə-ˈtu̇r, -ˈtyu̇r, -ˈchu̇r\
Definition of IMMATURE for Kids
1
: not yet fully grown or ripe <an immature bird> <immature fruit>
2
: acting in or exhibiting a childish manner <an immature teenager> <immature behavior>
— im·ma·ture·ly adverb
Medical Dictionary
immature
adjective im·ma·ture \ˌim-ə-ˈt(y)u̇(ə)r also -ˈchu̇(ə)r\
Medical Definition of IMMATURE
: lacking complete growth, differentiation, or development <immature blood cells> <emotionally immature>
—im·ma·ture·ly adverb
—im·ma·tu·ri·ty \-ˈt(y)u̇r-ət-ē also -ˈchu̇r-\ noun, plural im·ma·tu·ri·ties
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