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