Palest rhymes with:
agriculturalist, analyst, ballast, beautifullest, calloused, capitalist, catalyst, cellist, conversationalist, coolest, cruelest, dullest, evangelist, formalist, fullest, gentlest, gollust, herbalist, humblest, institutionalist, journalist, littlest, monopolist, nationalist, naturalist, neutralist, novelist, panelist, photojournalist, populist, psychoanalyst, simplest, smallest, socialist, specialist, stablest, televangelist, ultranationalist, violist
Palest sounds like:
palisade, pelchat, philistia, pillaged, placate, placed, placeta, placid, placida, placido, placoid, plagued, plaisted, plaskett, pleased, plichta, plight, ploughed, plucked, plugged, polecat, policed, polished, polycast, pool-side, poolside, populist, publicist, publicity, publicized, published