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