Here's what rhymes with existant.
existent distant assistant insistent consistent persistent resistant coexistent equidistant inconsistent nonexistent nonresistant Words that almost rhyme with existant
fishpond shipment distanced fittest encystment fitment equipment visit efficient inherent coherent pigment biscuit enlistment fiercest flippant civet officiant sickest hiccoughed hippest spirit sufficient commitment limit minute brilliant coefficient explicit nearest witnessed biggest deficient simplest ticket dearest digit enrichment indignant inefficient inhibit richest adherent cricket frigate illicit incoherent millet picket pivot strictest billet resilient rivet skillet bigot diffident grimaced oviduct pendent wicket demised endearment midget snippet spigot swiftest brisket gimlet gymnast outdistanced queerest tippet devilment dimmest grimmest stiffest divot jennet reshipment shrillest slickest slimmest whippet briskest giblet insufficient fulfillment implicit indifferent malignant fulfilment reminiscent stringent beneficent infringement proficient omniscient severest triplet abridgment cleverest impingement abridgement sincerest deliquescent limpet maleficent privet trinket bewitchment weirdest disenchant inspirit reenlistment trivet contingent delinquent intermittent prohibit astringent violinist delimit sublimate complicit palimpsest transshipment preterit nonmalignant immunodeficient