Obstinacy
Part of speech: noun
Definition: The state, or an act, of stubbornness or doggedness.
Example sentence: Like the periwig and the bowler hat, the plus-four and the bow-tie, the blazer is on the way out, and those who persist in wearing it do so with a smattering of self-consciousness, a touch of obstinacy, even a pinch of camp.
Pigheadedness
Part of speech: noun
Definition: The condition of being pigheaded