noun, noun or participle which takes 'suru', intransitive verb
dying in vain; useless death; meaningless death
Refers to a death that serves no purpose or achieves nothing. Often used in contexts of war, sacrifice, or reckless behavior.
彼の死は無駄死にだったのか。
Was his death in vain?
無駄死にしないように気を
Be careful not to die a meaningless death.