Meaning of “mortal” - Learner’s Dictionary

mortal

adjective uk us /ˈmɔːtəl/

not living forever

→ Opposite immortal
mortal danger/fear/terror, etc

extreme danger/fear/terror, etc, because you could die

mortally adverb

mortally wounded

(Definition of “mortal adjective” from the Cambridge Learner’s Dictionary © Cambridge University Press)