not tractable; difficult to manage or mold; "an intractable disposition"; "intractable pain"; "the most intractable issue of our era"; "intractable metal"
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"
stubbornly resistant to authority or control; "a fractious animal that would not submit to the harness"; "a refractory child"