mortal
adj
1 (of living beings, esp. human beings) subject to death
2 of or involving life or the world
3 ending in or causing death; fatal
a mortal blow
4 deadly or unrelenting
a mortal enemy
5 of or like the fear of death; dire
mortal terror
6 great or very intense
mortal pain
7 possible
there was no mortal reason to go
8 Slang long and tedious
for three mortal hours
n
10 Informal a person a mean mortal (C14: from Latin mortalis, from mors death) ♦
mortally adv
mortal sin
n (Christianity) a sin regarded as involving total loss of grace
Compare →
venial sin