Words That Rhyme With "Viper" :
2 syllables:
beeper, Biber, biker, biter, bleeper, blighter, blooper, bopper, briber, brighter, caper, capper, cheaper, chipper, choper, chopper, cider, clapper, Cliburn, clipper, Clopper, cooper, coper, copper, Cowper, crapper, creeper, cropper, crupper, cupper, cyber, cyder, dapper, deeper, Deibert, diaper, dipper, Dnieper, draper, dropper, duiker, duper, eider, eyebar, fiber, fibre, fighter, flapper, flipper, Frieder, gaper, Geiger, gipper, glider, gripper, grouper, guider, hepar, Hepper, hider, hiker, hipper, hooper, hoper, hopper, hyper, Jaipur, kapor, kapur, keeper, Kiper, kipper, knapper, Kuiper, kupper, lapper, leaper, leper, lepper, liber, liger, lighter, lipper, looper, loper, lopper, mapper, miter, mitre, mopper, napper, neeper, Neper, nipper, niter, nitre, paper, pauper, peeper, pepper, piker, piper, pipper, popper, proper, propper, raper, rapper, reaper, reiter, rider, righter, ripper, roper, Ryder, sapor, sapper, schnapper, schneider, scooper, scraper, scrapper, scriber, scupper, shaper, shipper, shopper, sider, sipper, skipper, slapper, sleeper, slider, slipper, sloper, snapper, snider, sniper, snooper, Soper, sopor, spider, spiker, steeper, stepper, stooper, stoper, stopper, strapper, strider, stridor, striker, striper, stripper, stupor, super, supper, sweeper, Swiger, taper, tapir, tapper, Tiber, tiger, tighter, tipper, titer, titre, toper, Topor, topper, trapper, tricar, tripper, trooper, trouper, typebar, upper, weeper, whapper, whipper, whiter, whooper, whopper, wider, wiper, wrapper, writer, zapper, zipper
3 syllables:
bagpiper, collider, decider, dispauper, exciter, excitor, igniter, ignitor, imbiber, improper, inciter, insider, offsider, outsider, prescriber, reciter, repaper, rewriter, sandpiper, subscriber, topflighter, transcriber, unmiter, unmitre, unstopper