命いのち知しらず

noun, noun which may take the genitive case particle 'no', na-adjective

recklessness; daredevilry; reckless person

Describes a person or action that disregards danger or risks one's life. Can be used as a noun or adjectivally with な or の.

• 彼かれは命いのち知しらずの冒ぼう険けん家かだ。

  He is a reckless adventurer.

• そんな命いのち知しらずな真似まねはやめろ。

  Stop such reckless behavior.