ANTICATALYST Scrabble 17 Words With Friends 19 Scrabble letter values: A1N1T1I1C3A1T1A1L1Y4S1T1 = 17 Definition noun (chemistry) a substance that retards a chemical reaction or diminishes the activity of a catalyst. See all 314 words you can make from ANTICATALYST → 12-letter words Words starting with A Words ending with T ← Unscramble different letters