Not tractable or to be drawn or guided by persuasion; not easily governed, managed, or directed; uncontrollable; incurable; violent; stubborn; obstinate
Intractable problems or situations are very difficult to deal with. The economy still faces intractable problems
Not tractable; not easily governed, managed, or directed; indisposed to be taught, disciplined, or tamed; violent; stubborn; obstinate; refractory; as, an intractable child
not tractable; difficult to manage or mold; "an intractable disposition"; "intractable pain"; "the most intractable issue of our era"; "intractable metal"
In complexity theory, referring to a problem with no efficient means of deriving a solution
Intractable people are very difficult to control or influence. What may be done to reduce the influence of intractable opponents?