mortal sin
noun
: a sin (such as murder) that is deliberately committed and is of such serious consequence according to Thomist theology that it deprives the soul of sanctifying grace compare venial sin sense 1
Examples of mortal sin in a Sentence
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This is a threat especially in the realm of SaaS, where credibility with technical users is currency and being deemed vaporware is a mortal sin.
—
Alexander Puutio, Forbes.com, 10 June 2025
Lying to the nuns about a dead aunt to go see Indiana Jones may not have been a mortal sin.
—Jordan Hoffman, EW.com, 5 June 2025
The country, only 75 years old, was bitterly torn apart by competing views on whether the practice of slavery was a legal right or a mortal sin.
—Michael Peregrine, Chicago Tribune, 18 May 2025
For example, Catholics who are married in the church, get divorced and are remarried are, for all intents and purposes, living in a state of mortal sin.
—Voice Of The People, New York Daily News, 14 June 2024
See All Example Sentences for mortal sin
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Alexander Puutio, Forbes.com, 10 June 2025
Lying to the nuns about a dead aunt to go see Indiana Jones may not have been a mortal sin.
—Jordan Hoffman, EW.com, 5 June 2025
The country, only 75 years old, was bitterly torn apart by competing views on whether the practice of slavery was a legal right or a mortal sin.
—Michael Peregrine, Chicago Tribune, 18 May 2025
For example, Catholics who are married in the church, get divorced and are remarried are, for all intents and purposes, living in a state of mortal sin.
—Voice Of The People, New York Daily News, 14 June 2024
See All Example Sentences for mortal sin
Cite this Entry
“Mortal sin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mortal%20sin. Accessed 3 Jul. 2025.
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