Words That Rhyme With "Slightest" :
2 syllables:
brightest, Cnidus, cutest, fattest, fittest, greatest, hottest, Idas, lightest, Midas, mightest, neatest, nidus, Picus, rightist, situs, sweetest, tightest, Titus, wettest, whitest, widest
3 syllables:
Cocytus, detritus, Granicus, posticous, pruritus, pyritous, remotest, tinnitus