mortal enemy

1. 1.

   an enemy who wants to kill you

   Broaderfoe

Questions about mortal enemy

What does mortal enemy mean?

mortal enemy means "an enemy who wants to kill you".

Is mortal enemy a common word?

mortal enemy is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.