妄もう執しゅう

noun

deep-rooted delusion; firm conviction based on false beliefs

Primarily a Buddhist term for a deeply held attachment or delusion that causes suffering. In modern usage, it can refer to an irrational, stubborn belief or obsession.

• 彼かれは自じ分ぶんの理り論ろんに妄もう執しゅうしている。