Open English Wordnet
Adjectives
(s)fractious, refractory, recalcitrantstubbornly resistant to authority or control“a fractious animal that would not submit to the harness”,
“a refractory child” (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)fractiousunpredictably 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”