Crossword clues for the word: ILLOGIC The word ILLOGIC has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for ILLOGIC Showing 1 to 7 of 7 results Clue(s) "Non sequitur, ad hominem, etc." Bad reasoning Improper reasoning Incorrect reasoning Lack of reason Mr. Spock's bane Unsound reasoning