Synonyms of harsher

1 Syllable
hard, bleak, sharp, sour, flat, grim
2 Syllables
coarse, craggy, rusty, grating, jagged, rugged, clashing, glaring, rasping, strident, rigid, cracked, acrid, jarring, hoarse, raucous, noisy, creaking, bitter, croaking, jangling, off-key, screeching
3 Syllables
asperous, disturbing, unlevel, guttural, disagreeing, uneven, stridulous, severe, tuneless, astringent, earsplitting, dissonant, out-of-key, discordant, out-of-tune
4 Syllables
unrelenting, unmusical, cacophonous, caterwauling, unmelodious
5 Syllables
incompatible