Adjective

1. cranky, fractious, irritable, nettlesome, peevish, peckish, pettish, petulant, scratchy, testy, tetchy, techy, ill-natured (vs. good-natured)

usage: easily irritated or annoyed; "an incorrigibly fractious young man"; "not the least nettlesome of his countrymen"

See also: techy (Dictionary)