definition of
fractious

[1] #1 fractious s. [cranky, irritable, nettlesome, peevish, peckish, pettish, petulant, scratchy, testy, tetchy, techy] easily irritated or annoyed; "an incorrigibly fractious young man"; "not the least nettlesome of his countrymen". wn

[2] #2 fractious s. unpredictably difficult in operation; likely to be troublesome; "rockets were much too fractious to be tested near thickly populated areas"; "fractious components of a communication system". wn