Here's what rhymes with passive.
massive impassive Words that almost rhyme with passive
passeth basses dashes brasses gasses bashes wrasses jazzes lavish lashes surpasses caches rashes sashes hashish morasses harasses mashes raffish amasses cashes gnashes stashes brazes trashes abashes razzes flashes clashes crashes rapacious slashes smashes overpasses thrashes pugnacious underpasses hourglasses demitasses calabashes gatecrashes active adaptive captive attractive reactive inactive expansive proactive combative interactive contrastive hyperactive overactive nonactive radioactive refractive unattractive maladaptive extractive retroactive vasoactive psychoactive counteractive nonreactive putrefactive nonradioactive immunoreactive