Here's what rhymes with decontaminant.
contaminant Words that almost rhyme with decontaminant
passionate antagonist compassionate laminate cabinet chaplet battlement abandonment catalyst inhabitant cantonment halibut flatulent panelist flagellant management graduate protagonist dispassionate entanglement anatomist intransigent classicist coagulant bedazzlement cohabitant inadequate extravagant undergraduate evangelist disentanglement flannelet inanimate anticoagulant romanticist somnambulist dismantlement semanticist philanthropist postgraduate psychoanalyst televangelist