immature
im.ma.ture \.im-*-'t(y)u.(*)r also -'chu.(*)r\ \-'t(y)u.r-*t-e- also -'chu.r-\ aj [L immaturus, fr. in- + maturus mature] archaic 1: PREMATURE 2a: lacking complete growth differentiation, or development : UNRIPE)M 2b1: CRUDE, UNFINISHED of a topographic feature 2b2: predictably due to undergo further changes - used esp. of valleys a nd drainages while most of the area is well above baselevel - immature n