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