Here's what rhymes with fixedness.
Words that almost rhyme with fixedness
thickness fitness sickness instance illness witness mistress citrus viscous isthmus listless strictness swiftness business distance assistance vicious richness stiffness stillness fearless hindrance assiduous eyewitness litmus quickness thickets bigness dimness discus ingress instants sinless sinuous unfitness beardless cirrus villus windlass windless witless existence interests minutes resistance impulse visits assistants forgiveness insistence persistence influx tickets biscuits distinctness pickets hillocks ingots officious pittance resistless hibiscus nimbus pickups riddance wickets wingless limits spirits bishops infants subsistence digits shipments auspicious bacillus diffidence elicits frigates grimace meniscus rivets seditious avaricious billets consistence crickets cystitis pivots bigots mastitis profitless snippets solicits religious appearance adherence ambitious clearance exhibits suspicious coherence delicious fictitious inhibits judicious malicious pernicious admittance brilliance coexistence pigments papyrus trinkets factitious remittance triplets enlistments litigious commitments adherents prodigious capricious prestigious prohibits nutritious propitious eucalyptus indigence irreligious nonexistence surreptitious agribusiness coefficients interference disappearance perseverance superstitious delinquents adventitious archbishops reappearance reminiscence expeditious incoherence infringements injudicious repetitious transmittance endearments unambitious contingents nonreligious