Here's what rhymes with gainsayer.
fayer layer mayor conveyor payer slayer gayer conveyer assayer essayer stayer naysayer player surveyor purveyor sprayer grayer greyer doomsayer bilayer soothsayer delayer waylayer monolayer betrayer astuter multilayer multiplayer Words that almost rhyme with gainsayer
favor favour vapor safer sailor sabre savor savour seiner hacer hater saber saver shaker saner vaguer shaver faker hazer vainer sager haler fainer later nature major paper failure labor laser maker neighbor flavor tailor waiter flavour razor scalar taper wafer waiver baker cater fainter invader savior taker wager baser freighter jailer maner nadir pater raiser rater spacer waver caper chaser gainer inhaler maser pager racer raider skater slaver tamer whaler bather framer jailor mailer pacer baler frailer gamer gator tabor dater evader gaiter tater wader caver lamer raver staler raper staider caner wailer wagerer insaner unsafer greater danger chamber container painter trader traitor breaker crater glacier labourer planar tracer trailer trainer graver manger aviator braver changer crusader grader innovator levator papier plainer ranger scraper straighter strainer arranger blazer campaigner draper eraser planer grater modeller quaver taster waster prater bracer chaster defamer drainer grazer baster claimer defacer opaquer sedater wavier crocheter urbaner inaner behavior operator stranger generator creator elevator equator mediator oscillator endanger activator curator engraver insulator moderator navigator radiator retainer appraiser attainder debater disfavor disfavour imitator rotator violator animator belabor denature persuader abstainer annotator complainer headwaiter statelier cockchafer collator gyrator humaner masquerader quainter renovator inhalator saltshaker boneshaker loudhailer finagler remainder indicator translator commentator dictator educator agitator alligator exchanger modulator negotiator actuator carburetor decorator disclaimer entertainer evaporator instigator obturator respirator undertaker escalator excavator gladiator incinerator partaker conciliator emulator gamester idolater cooperator declaimer poetaster automaker dumbwaiter moneymaker nominator restrainer blockader adulator hibernator corroborator legislature legislator regulator accelerator collaborator incubator originator simulator ventilator alternator applicator evaluator illustrator integrator misbehavior liquidator detonator fabricator percolator eliminator fornicator pollinator vindicator boilermaker consolidator dedicator dehydrator infiltrator litigator semiquaver semitrailer programer castigator decelerator defoliator exaggerator fumigator mutilator peculator insinuator abrogator denominator investigator refrigerator arbitrator coordinator nomenclature accumulator calculator facilitator perpetrator speculator communicator procurator stimulator demonstrator interrogator adjudicator cabinetmaker policymaker duplicator exterminator formulator lubricator resuscitator eradicator contaminator decapitator administrator manipulator defibrillator discriminator troublemaker appropriator prevaricator dissimulator repudiator photoengraver procrastinator prognosticator expropriator