n. any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt

n. a powerful hallucinogenic drug manufactured from lysergic acid

n. street name for lysergic acid diethylamide

adj. having the characteristics of an acid; "an acid reaction"

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. not forbearing; ruthless; "an unsparing critic"

adj. marked by rude or peremptory shortness; "try to cultivate a less brusque manner"; "a curt reply"; "the salesgirl was very short with him"

adj. expressing or expressive of ridicule that wounds

adj. marked by strong resentment or cynicism; "an acrimonious dispute"; "bitter about the divorce"

adj. strong and sharp;"the pungent taste of radishes"; "the acrid smell of burning rubber"

adj. causing distress or worry or anxiety; "distressing (or disturbing) news"; "lived in heroic if something distressful isolation"; "a disturbing amount of crime"; "a revelation that was most perturbing"; "a new and troubling thought"; "in a particularly worrisome predicament"; "a worrying situation"; "a worrying time"

adj. characterized by malice; "a hateful thing to do"; "in a mean mood"

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. tasting or smelling like vinegar

adj. of a substance, especially a strong acid; capable of destroying or eating away by chemical action

adj. (of weapons or instruments) causing suffering and pain; "brutal instruments of torture"; "cruel weapons of war"

adj. (of weapons or instruments) causing suffering and pain; "brutal instruments of torture"; "cruel weapons of war"

adj. characterized by enmity or ill will; "a hostile nation"; "a hostile remark"; "hostile actions"

adj. having the nature of or resulting from malice; "malicious gossip"; "took malicious pleasure in...watching me wince"- Rudyard Kipling

adj. yielding an acid in aqueous solution

adj. harsh; "sharp criticism"; "a sharp-worded exchange"; "a tart remark"

adj. disagreeable; "I will not perform the ungrateful task of comparing cases of failure"- Abraham Lincoln

adj. harshly uninviting or formidable in manner or appearance; "a dour, self-sacrificing life"; "a forbidding scowl"; "a grim man loving duty more than humanity"; "undoubtedly the grimmest part of him was his iron claw"- J.M.Barrie

adj. very unpleasant

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"

adj. very unpleasant; "hellish weather"; "stop that god-awful racket"

adj. causing misery or pain or distress; "it was a sore trial to him"; "the painful process of growing up"

adj. serving or tending to repel; "he became rebarbative and prickly and spiteful"; "I find his obsequiousness repellent"

adj. causing discomfort; "the unhappy truth"

adj. without beauty or charm

adj. affording pleasure; being in harmony with your taste or likings; "a pleasant person to be around"; "we had a pleasant evening together"; "a pleasant scene"; "pleasant sensations"