bullheaded(redirected from bullheadedly)
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Inflexible; stubborn; overly willful or obstinate. Our son is so bull-headed. Once he's made up his mind about something, there's no way anyone can change it! We've got a bull-headed new boss in the office who thinks her way of doing things is the only correct one.
mod. stubborn. You are the most bullheaded man I’ve ever known.