頑がん愚ぐ

na-adjective, noun

obstinate and foolish

Describes a person who is stubbornly foolish or pigheaded. Rare literary word; in modern Japanese, 頑固で愚か or similar phrases are more common.

• 彼かれの頑がん愚ぐな態たい度どには手てを焼やいた。

  I was at my wits' end with his obstinate and foolish attitude.