1. an unpardonable sin entailing a total loss of grace; - Example: "theologians list seven mortal sins" [syn: mortal sin, deadly sin]
WordNet (r) 3.0 (2006):
mortal sin
n 1: an unpardonable sin entailing a total loss of grace;
"theologians list seven mortal sins" [syn: mortal sin,
deadly sin] [ant: venial sin]