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