adjective

unpleasantly rough or jarring to the senses.

drenched in a harsh white neon light

grating,jarring,grinding,rasping,raspy,strident,raucous,brassy,jangling,metallic,ear-piercing,discordant,dissonant,disagreeable,unharmonious,cacophonous,unmelodious,screeching,shrill,tinny,squeaky,squawking,rough,coarse,guttural,hoarse,gruff,croaky,croaking,growly,growling,stridulant,glaring,bright,dazzling,brilliant,loud,flashy,garish,gaudy,lurid,bold,showy,crude,vulgar