Here's what rhymes with rectitudinous.
genus venous keenness spinous dirtiness podginess ferruginous paleness cheeriness hugeness eeriness blurriness artiness boniness cattiness furriness snootiness nippiness maleness resinous saphenous heartiness loftiness libidinous messiness parvenus meagreness mistiness noisiness staleness phoniness sauciness shiftiness stoniness rosiness chanciness fieriness merriness sorriness sportiness leeriness savouriness intravenous multitudinous platitudinous slipperiness thriftiness sombreness extremeness corniness fanciness pulchritudinous thorniness waxiness fleeciness femaleness orneriness hungriness severeness arteriovenous Words that almost rhyme with rectitudinous
zenith arenas patinas hyenas subpoenas marinas hyaenas verbenas behemoth ballerinas czarinas tsarinas concertinas ocarinas sonatinas genius cheapness peanuts deepness tubeless pitas thesis weakness treatise fetus meanness meatus meekness neatness rhesus specious nevus prius rebus steepness treeless bleakness teacups adieus betakes beechnuts briefness heelless zebus zeniths sheilas prenups ingenious needless pretence sweetness uniqueness grievous speechless heedless osseous priestess seamless capitis leafless paribus dreamless greenness viscus fleetness seedless lenience meatless cleanups obliqueness sleekness speedups weedless genteelness sereneness wapitis sequence allegiance secrets grievance impedance credence leaflets reflux covetous sleepless egregious facetious regents sealants discreteness silicious theists sapience yeshivas candidness discreetness martinets urethras repleteness achievements treatments completeness heterogeneous trapezius acacias myelitis sentience bereavements decedents panaceas behemoths nacreous appeasements convenience calcareous incompleteness concreteness frequents malfeasance mendicants impeachments misfeasance insentience infrequence agreements inconvenience antecedents extremists margaritas senoritas orthopedists telekinesis orthopaedists enjambements disagreements psychokinesis osteomyelitis poliomyelitis