The definition of an atrocity is something that is very cruel or brutal.
A mortal sin, deadly sin.
A person or thing that brings shame, dishonor, or reproach (to one, etc.)
Find another word for mortal-sin. In this page you can discover 7 synonyms, antonyms, idiomatic expressions, and related words for mortal-sin, like: atrocity, cardinal-sin, deadly-sin, disgrace, unforgivable sin, venial-sin and vice.