Open English Wordnet
Adjectives
(s)cranky, fractious, irritable, nettlesome, peevish, peckish, pettish, petulant, scratchy, testy, tetchy, techyeasily irritated or annoyed“an incorrigibly fractious young man”,
“not the least nettlesome of his countrymen” (s)spotty, uneven, scratchylacking consistency“the golfer hit the ball well but his putting was spotty”