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