I. |i(m)+ adjective
Etymology: Latin immaturus, from in- in- (I) + maturus mature — more at mature
1. archaic : premature , untimely
2.
a. : lacking complete growth, differentiation, or development
poor thin immature soils
immature animals
: unripe
immature fruit
b.
(1) : having capacities or potentialities for attaining but not yet having attained a definitive form or state
immature talents
a vigorous but immature school of art
: crude , unfinished
(2) of a topographic feature : predictably due to undergo further changes : not having attained maturity — used especially of valleys and drainages while most of the area is well above baselevel
c. : exhibiting less than a normal or expected degree of maturity
emotionally immature adults
the alcoholic is an immature , maladjusted individual — W.L.Wilkins
• im·maturely “+ adverb
• im·matureness “+ noun
II. “+ noun
( -s )
: an immature individual ; especially : a young bird that has molted the juvenal plumage but has not yet acquired complete adult plumage