Words That Rhyme With "Slimness" :
2 syllables:
china's, dimness, dryness, dumbness, fineness, gameness, grimness, highness, imus, Minos, minus, numbness, primness, primus, rimous, sameness, shyness, simas, sinus, spinous, tameness, thymus, timeous, trimness, vinous, wryness
3 syllables:
Delphinus, echinus, extremeness, Longinus, Mutinus, Picumnus, Plotinus, pulvinus, Socinus, sublimeness, uncinus, untimeous