na-adjective, noun
bigoted; obstinate; stubborn; pigheaded
Describes a person who stubbornly clings to their own opinions and refuses to listen to reason; often carries a negative, critical tone. Used as a na-adjective or noun.
彼は頑迷で、人の意見をまったく聞かない。
He is so obstinate that he never listens to others' opinions.
頑迷な態度で
With a pigheaded attitude, teamwork cannot function.
頑固 is the common word for 'stubborn' and can be used for both people and things (e.g., stubborn stain). 頑迷 is more literary and emphasizes closed-mindedness and refusal to accept reason, often with a stronger negative connotation.
強情 also means 'stubborn' but focuses on willfulness and defiance. 頑迷 implies a more deep-seated, irrational obstinacy.
Compound of 頑 (stubborn, foolish) and 迷 (astray, perplexed). The exact historical derivation is uncertain, but the combination suggests being stubbornly lost in one's own views.