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immature

1 ENTRIES FOUND:
immature /ɪməˈtuɚ/ /ɪməˈtʃɚ/ adjective
immature
/ɪməˈtuɚ/ /ɪməˈtʃɚ/
adjective
Britannica Dictionary definition of IMMATURE
: not mature: such as
: not fully developed or grown
[more immature; most immature] : acting in a childish way : having or showing a lack of emotional maturity

— immaturity

/ɪməˈturəti/ /ɪməˈtʃɚrəti/ noun [noncount]