adj.
harsh or corrosive in tone; "an acerbic tone piercing otherwise flowery prose"; "a barrage of acid comments"; "her acrid remarks make her many enemies"; "bitter words"; "blistering criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "a sulfurous denunciation"; "a vitriolic critique"
adj.
wishing or appearing to wish evil to others; arising from intense ill will or hatred; "a gossipy malevolent old woman"; "failure made him malevolent toward those who were successful"
adj.
showing a brooding ill humor; "a dark scowl"; "the proverbially dour New England Puritan"; "a glum, hopeless shrug"; "he sat in moody silence"; "a morose and unsociable manner"; "a saturnine, almost misanthropic young genius"- Bruce Bliven; "a sour temper"; "a sullen crowd"
adj.
disagreeable to the senses; "the harsh cry of a blue jay"; "harsh cognac"; "the harsh white light makes you screw up your eyes"; "harsh irritating smoke filled the hallway"
adj.
causing to feel shame or chagrin or vexation; "the embarrassing moment when she found her petticoat down around her ankles"; "it was mortifying to know he had heard every word"