没ぼつ常じょう識しき

na-adjective, noun

lack of common sense; senselessness

Describes a person, action, or idea that is shockingly unreasonable or out of touch with basic social norms. Often used critically.

• 彼かれの提てい案あんは没ぼつ常じょう識しきだ。

  His proposal shows a complete lack of common sense.

• そんな没ぼつ常じょう識しきな行こう動どうは許ゆるされない。

  Such senseless behavior is unacceptable.