not smooth

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 off-key out-of-key out-of-tune rasping raucous rugged rusty screeching sour stridulous tuneless uneven unlevel unmelodious unmusical unrelenting

bland bright calm cheerful easy facile flexible kind low mild moderate nice pleasant pliable pliant soft sunny yielding

courteous gentle peaceful pleasing polite smooth

bumpy choppy coarse fuzzy harsh rocky rugged

bearded broken chapped disheveled jagged ridged ruffled sharp tangled tousled wrinkled

asperous brambly bristly bushy cragged craggy cross-grained hairy knobby knotty nodular scabrous scraggy shaggy stony tufted unequal unfinished unlevel unshaven unshorn woolly wrinkly

calm courteous easy flat gentle mild nice polite refined smooth soft sophisticated

neat ordered unwrinkled

accurate complete definite even level moderate polished precise regular temperate

cracked discordant hoarse raspy raucous

acrid asperous astringent bitter bleak cacophonous caterwauling clashing coarse craggy creaking croaking disagreeing dissonant disturbing dry earsplitting flat glaring grating grim guttural hard incompatible jagged jangling jarring noisy off-key out-of-key out-of-tune rasping rigid rough rugged rusty screeching severe sharp sour squawky strident stridulous tuneless uneven unlevel unmelodious unmusical unrelenting

soft