Easily irritated or annoyed
English: cranky, fractious, irritable, nettlesome, peevish, peckish, pettish, petulant, scratchy, testy, tetchy, techy
fractiousEnglish
fractious, cranky, irritable, nettlesome, peckish
Adjective
Stubbornly resistant to authority or control
English: fractious, refractory, recalcitrant
Unpredictably difficult in operation, likely to be troublesome
English: fractious