Crossword clues for the word: FAITHLESS The word FAITHLESS has appeared as an answer to at least 4 crossword clues on different crossword puzzles. Crossword clues for FAITHLESS Showing 1 to 4 of 4 results Clue(s) An atheist and treacherous Atheist has left and is upset Disloyal and an atheist So described, the devil has to be furious with itself?