Chilliest rhymes with:
silliest, deadliest, earliest, friendliest, jolliest, likeliest, silliest, ugliest, angriest, atheist, bloodiest, blotchiest, blowiest, busiest, cheeriest, craziest, deadliest, dirtiest, earliest, easiest, fanciest, flashiest, flightiest, flimsiest, fluffiest, foggiest, friendliest, funniest, grooviest, handiest, happiest, hardiest, heartiest, heaviest, heftiest, jolliest, juiciest, junkiest, laziest, likeliest, lobbyist, luckiest, mightiest, nastiest, noisiest, prettiest, raciest, rainiest, riskiest, ritziest, rustiest, scariest, sexiest, showiest, silliest, skimpiest, skinniest, sloppiest, smoggiest, sniffiest, stealthiest, steamiest, stickiest, thorniest, tiniest, trickiest, ugliest, wealthiest, worthiest, zaniest
Chilliest sounds like:
calcite, calcote, calcutt, calcutta, calista, callicoat, callicott, callicutt, calloused, calzada, celesta, celeste, cellist, chalked, chalsty, checklist, chilcoat, chilcote, chilcott, chilcutt, chillicothe, clagett, claggett, clashed, classed, classicist, cliched, clicked, cliggott, cloaked, clocked, clogged, closed, closest, closet, closeted, coalesced, colgate, collect, collected, collegiate, colquitt, coolest, cyclist