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