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