Crossword clues for the word: KNEEJERK The word KNEEJERK has appeared as an answer to at least 9 crossword clues on different crossword puzzles. Crossword clues for KNEEJERK Showing 1 to 9 of 9 results Clue(s) "Unthinking, as a reaction" Automatic, as a reaction Leg reflex Reaction to a doctor's mallet Readily predictable Reflex Reflex action. Reflexive response Unthinking, as a reaction (Hyph.)