Decisive rhymes with:
indecisive, indecisive, incisive, indecisive, divisive, incisive, indecisive, abrasive, abusive, adhesive, aggressive, allusive, apprehensive, coercive, cohesive, collusive, comprehensive, compulsive, conclusive, conducive, convulsive, corrosive, counteroffensive, defensive, depressive, derisive, discursive, dismissive, dispersive, divisive, effusive, elusive, erosive, evasive, excessive, exclusive, expansive, expensive, explosive, expressive, extensive, hypertensive, illusive, impassive, impressive, impulsive, incisive, inclusive, inconclusive, indecisive, inexpensive, inoffensive, intensive, intrusive, invasive, massive, missive, nonexclusive, nonresponsive, obsessive, obtrusive, offensive, oppressive, passive, pensive, permissive, persuasive, pervasive, plosive, possessive, progressive, recessive, reclusive, reflexive, regressive, repressive, repulsive, responsive, submissive, subversive, successive, superabrasive, unimpressive, unobtrusive, unresponsive
Decisive sounds like:
datacopy, decaf, decapua, deceive, dejoseph, detoxify, digby, digiuseppe, disavow, disobey, doughboy, dsv, dziuba