bitter bleak grim hard rigid severe sharp strident coarse acrid asperous astringent cacophonous caterwauling clashing cracked craggy creaking croaking disagreeing discordant dissonant disturbing earsplitting flat glaring grating guttural hoarse incompatible jagged jangling jarring noisy not smooth off-key out-of-key out-of-tune rasping raucous rugged rusty screeching sour stridulous tuneless uneven unlevel unmelodious unmusical unrelenting