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