Words That Rhyme With "Unstopper" :
2 syllables:
Auber, auger, augur, autarch, balker, baulker, beeper, bleeper, blocker, blooper, blotter, bobber, Bober, bopper, broader, calker, caper, capper, caulker, chalker, cheaper, chipper, chocker, choper, chopper, clapper, clipper, clobber, clocker, clogger, Clopper, cobber, cocker, cooper, coper, copier, copper, copter, cottar, cotter, Cowper, crapper, creeper, Crocker, cropper, crupper, cupper, dapper, daughter, deeper, diaper, dipper, Dnieper, dobber, docker, dodder, dogger, Doppler, dotter, draper, drawbar, dropper, duper, flapper, flipper, flogger, fodder, gaper, gipper, gripper, grouper, hauberk, hawker, hepar, Hepper, hipper, hocker, Hoder, Hodur, hogger, hooper, hoper, hopper, hotter, hyper, Jaipur, jobber, jodhpur, jogger, jotter, kapor, kapur, keeper, Kiper, kipper, knapper, knocker, knotter, Kuiper, kupper, lapper, Lauder, lawter, leaper, leper, lepper, lipper, locker, logger, looper, loper, lopper, lotter, mapper, mauger, maugre, mocker, mopper, napper, neeper, Neper, nipper, odder, ottar, otter, paper, pauper, peeper, pepper, piper, pipper, plodder, plotter, poplar, popper, potherb, potter, proper, propper, prosper, raper, rapper, reaper, ripper, robart, robber, Robert, rocker, romper, roper, rotter, sapor, sapper, sauger, schnapper, scooper, scraper, scrapper, scupper, shaper, shipper, shocker, shopper, sipper, skipper, slapper, slaughter, sleeper, slipper, slobber, slogger, sloper, sloppier, slotter, snapper, sniper, snooper, soccer, solder, Soper, sopor, spotter, squawker, stopper, strapper, striper, stripper, super, supper, sweeper, swotter, Topor, topper, trapper, tripper, trooper, trotter, trouper, upper, vapor, viper, walker, water, weeper, whapper, whipper, whooper, whopper, wiper, wrapper, zapper, zipper
3 syllables:
adopter, applauder, beslobber, brushpopper, cartopper, Chiropter, clodhopper, defrauder, dewater, dispauper, froghopper, garrotter, grasshopper, horopter, improper, leafhopper, manstopper, marauder, Micawber, repaper, rockhopper, treehopper, woodchopper