致命傷 (chimeishou) Japanese meaning: fatal wound | KotomoraHe received a fatal wound on the battlefield.
The scandal dealt a fatal blow to his political career.
Usage patterns
〈人〉に致命傷を与えるto deal someone a fatal blow
That single blow dealt the enemy a fatal wound.
致命傷を負うto suffer a fatal wound
He suffered a fatal injury in the accident.
〈事〉が致命傷になるfor something to become a fatal blow (to a plan, career, etc.)
That mistake became a fatal blow to the company's credibility.