Here's what rhymes with whosoever.
soever never however forever whoever lever sever howsoever whomsoever clever whomever whatever whenever wherever endeavor endeavour whatsoever whichever whensoever wheresoever Words that almost rhyme with whosoever
whether measure weather leather leisure lesser feather heather lessor fresher nether tether thresher zephyr guesser pressure pleasure treasure assessor dresser presser together successor possessor aggressor oppressor suppressor refresher professor displeasure confessor depressor altogether compressor intercessor acupressure predecessor transgressor countermeasure better letter terror pepper seller bearer cellar debtor metre tenor beggar header ledger stellar sweater teller fairer feller leper rarer wearer checker fetter redder setter wetter carer sharer bettor cheddar speller stepper wrecker deader lecher shredder swearer center member centre gender sector gesture lecture render shelter surrender temper tender vector venture slender tenure censure helper sensor vendor censor lender rector sender tremor ureter denser denture dweller nectar sceptre specter spectre stretcher tester fender jester peddler scepter smelter welter censer fester herder metier pedlar pester renter scarcer spreader welder abettor bender dredger fencer spender vender vesper welcher heckler meddler mender director texture offender semester splendor cerebellar elector gentler impeller selector avenger blender tempter ejector begetter cleanser erector trencher remember receptor adventure collector detector inspector inventor investor connector defender propeller distemper engender indenture reflector assembler debenture dispenser injector objector bestseller blasphemer dissenter provender respecter sequester bisector declarer defector deflector dismember dissector intenser condenser conjecture protector trimester interstellar polyester preceptor projector storyteller centimetre contender millimetre pretender epicenter epicentre nonmember architecture peradventure interceptor misadventure transgender carburettor experimenter multiplexer