fractious
adj.
stubbornly resistant to authority or control
a fractious animal that would not submit to the harness|a refractory child
Synonym: recalcitrant, refractory
adj.
easily irritated or annoyed
an incorrigibly fractious young man|not the least nettlesome of his countrymen
Synonym: cranky, tetchy, testy, techy, scratchy, petulant, pettish, peevish, peckish, nettlesome, irritable
adj.
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