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