invidia vs mortal sin

invidia and mortal sin both are nouns.

Word	Noun	Adjective	Verb	Adverb
invidia	Yes	No	No	No
mortal sin	Yes	No	No	No

As nouns, mortal sin is a hypernym of invidia; that is, mortal sin is a word with a broader meaning than invidia:

invidia: spite and resentment at seeing the success of another (personified as one of the deadly sins)
mortal sin: an unpardonable sin entailing a total loss of grace

Other hypernyms of invidia include deadly sin.

invidia (noun)	mortal sin (noun)
spite and resentment at seeing the success of another (personified as one of the deadly sins)	an unpardonable sin entailing a total loss of grace