Here's what rhymes with underperform.
form farm perform harm forme reform warm alarm charm storm norm swarm disarm deform dorm preform inform conform forearm firearm outperform rearm vermiform overarm uniform transform nonfarm multiform rewarm chloroform lukewarm thunderstorm underarm schoolmarm yardarm misinform cuneiform fusiform nonuniform cruciform Words that almost rhyme with underperform
horn psalm thorn shorn born corn borne torn worn barn warn scorn sworn yarn adorn morn mourn darn porn tarn lorn forlorn forborne peppercorn unworn unborn reborn firstborn outworn waterborne forewarn timeworn lowborn stillborn careworn forsworn lovelorn foresworn sweetcorn unicorn homme vom som com calm bomb palm mom bom balm nom rom tom dom mam suam pom iamb quam prom aplomb pogrom qualm salaam consomme becalm intercom embalm firebomb supermom cardamom