buttheadedness en · NOUN
Etymology
From buttheaded + -ness.
Meanings
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(uncountable, vulgar) The state or quality of being buttheaded; stubbornness, especially when in the wrong.
"You know," she said, "that buttheadedness is something you've acquired since you came. Maybe determination is a better word, huh? I guess that's what makes a good dog man. The Squire's like that. And Teague, too, some."
1943, Vereen Bell, Two of a Kind, page 95: