harsh to touch or even any of the senses; sharp or bad to your taste, discordant towards the ear, inharmonious into the eye, etc.; grating; rasping; acrid; irritating: because, a harsh surface; harsh fruit; a harsh vocals; a harsk combination of colors.
Hard or extreme in place; of these a nature as to be repellent from any actual viewpoint.
Repugnant into the head and/or sensibilities; psychologically or morally forbidding; difficult to bear, endure, fix upon, etc.
Austere in character or extreme in action; stern; hard; unkind.
Synonyms and extreme, Rigorous, etc. (identify austere); acrimonious, ill-natured, ill-tempered, uncivil, ungracious, churlish, brutal.