Crossword clues for the word: SCARCEST The word SCARCEST has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for SCARCEST Showing 1 to 6 of 6 results Clue(s) Hardest to find Hardest to get Least abundant Like promethium, among all the rare earth metals Most rare Very difficult to find mark on box having wasted hours