the quality or state of being obstinate; stubbornness.

unyielding or stubborn adherence to one's purpose, opinion, etc.

stubborn persistence

The garrison fought on with incredible obstinacy.

resistance to cure, relief, or treatment, as a disease.

an instance of being obstinate; an obstinate act, viewpoint, etc.

noun

bullheadedness , doggedness , hardheadedness , mulishness , obstinateness , pertinaciousness , pertinacity , perverseness , perversity , pigheadedness , tenaciousness , tenacity , willfulness , disorderliness , fractiousness , indocility , intractability , intractableness , obstreperousness , recalcitrance , recalcitrancy , refractoriness , uncontrollability , uncontrollableness , ungovernableness , unmanageability , untowardness , wildness