Here's what rhymes with decavalent.
assailant covalent divalent inhalant Words that almost rhyme with decavalent
vacant halest patient payment adjacent latent nascent safest curtailment raiment vagrant palest sadist sanest vainest fainest statement latest attainment basement amazement pavement reagent abatement claimant flagrant fragrant blatant faintest abasement arraignment basest effacement shamefaced cadenced degassed anapest tamest gamest staidest unsafest urbanest greatest arrangement impatient placement platelet containment repayment bracelet bravest complacent complainant debasement plainest wavefront complaisant entailment nonpayment derailment escapement lakefront straightest defacement obtainment chastest plainchant subbasement opaqued insanest sedatest inanest displacement engagement affidavit supernatant enslavement ascertainment emplacement intranet prepayment restatement misstatement overstatement encasement quaintest underpayment detainment edutainment ordainment humanest unchastest entertainment replacement rearrangement derangement disengagement estrangement understatement entrainment misplacement disarrangement prearrangement infotainment nonadjacent reinstatement