Here's what rhymes with underproductive.
productive reproductive inductive seductive unproductive conductive counterproductive nonproductive destructive obstructive constructive instructive reconstructive nondestructive superconductive nonconstructive Words that almost rhyme with underproductive
ablative propulsive irruptive repulsive transitive subjunctive disjunctive eruptive locative fricative appositive assumptive mutative combustive lenitive compulsive disruptive impulsive presumptive vocative convulsive consumptive proliferative