Crossword clues for the word: MORTALSIN The word MORTALSIN has appeared as an answer to at least 11 crossword clues on different crossword puzzles. Crossword clues for MORTALSIN Showing 1 to 11 of 11 results Clue(s) "Murder, for example" Damnable offense Grave transgression Human beings in graceless state It can send you to hell People concerned with murder perhaps Serious offense against God Serious sermon subject Serious transgression, in Catholicism Subject for St. Thomas Aquinas Taking people such as ourselves in is really wrong