Crossword clues for the word: GREYMATTER The word GREYMATTER has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for GREYMATTER Showing 1 to 7 of 7 results Clue(s) "*Mental material," Brains ... or this puzzle's four circled names? Brains or intellect Brains, commonly Brains, intellect Intelligence Thing involving Zane or Lady Jane