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