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