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Webster 1913 Edition

Noun.

The quality of being intractable; intractableness.

Bp. Hurd.

–

In-tract′a-ble-ness

Noun.

–

In-tract′a-bly

adv.

Noun.

The quality of being ungovernable; obstinacy; perverseness.

Indocility.

intractability ‎(plural intractabilities)

(of people) the state of being intractable

Dutch: eigenzinnigheid f, eigenwijsheid f, eigengereidheid f, onhandelbaarheid f, balsturigheid f, onmeegaandheid f

(of things) the state of being intractable

intractability in The Century Dictionary, The Century Co., New York, 1911
intractability in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913