Here's what rhymes with firstness.
Words that almost rhyme with firstness
versus furnace firmness shirtless terseness service surface surplus circus alertness sternness inertness perverseness surplice thermos sourness purpose nervous purchase circuits worthless serous dermis nearness turnips hermits wordless dearness syrups purlieus serifs servants clearness serpents turrets worships disservice stirrups kerchiefs resurface currents emergence merchants occurrence divergence observance resurgence currants repurchase dolorous innervates disturbance convergence recurrence deterrence epidermis insurgents interprets disbursements dexterous submergence inadvertence tuberous diarists concurrence detergents deterrents indecorous malodorous reemergence coinsurance transference multipurpose reimbursements undercurrents metallurgists