Definition: Meaning of, mortal sin in English to English dictionary.
Pronunciation:/ ˈmɔːt(ə)l sɪn /
noun
synonym
antonym
Word Forms:
Singular
Plural
mortal sin
mortal sins
[uncountable and countable]
something that you do that is so bad, according to the Roman Catholic Church, that your soul will be punished for ever after death unless you ask to be forgiven