自じ己こ欺ぎ瞞まん

noun, noun which may take the genitive case particle 'no'

self-deception

A yojijukugo meaning the act of deceiving oneself, often used in psychological or philosophical contexts.

• 彼かれの楽らっ観かんは自じ己こ欺ぎ瞞まんに過すぎない。

  His optimism is nothing more than self-deception.

• 自じ己こ欺ぎ瞞まんに陥おちいらず、現げん実じつを直ちょく視しすべきだ。

  You should face reality without falling into self-deception.