Crossword clues for the word: PETERPRINCIPLE The word PETERPRINCIPLE has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for PETERPRINCIPLE Showing 1 to 7 of 7 results Clue(s) "Book about incompetence, with ""The""" Disciple with virtue gives explanation for incompetence Double promotion precluder Humorous law of promotion Law of big-business inefficiency Philosophy of incompetence Theory about corporate advancement