a. Difficult to manage, deal with, or change to an acceptable condition: an intractable conflict; an intractable dilemma.
b. Difficult to alleviate, remedy, or cure: intractable pain; intractable depression.
2. Difficult to persuade or keep under control, as in behavior: "Bullheaded enough when he was cold sober, he was intractable after a few drinks" (John Grisham). See Synonyms at obstinate.
3. Difficult to mold or manipulate: intractable materials.
in·trac′ta·bili·ty, in·tracta·ble·ness n.
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