Crossword clues for the word: NONUSE The word NONUSE has appeared as an answer to at least 8 crossword clues on different crossword puzzles. Crossword clues for NONUSE Showing 1 to 8 of 8 results Clue(s) "Avoidance, perhaps" Boycott of a kind. Cause of obsolescence. Cobwebs may be a sign of it Failure to bring into play Failure to utilize Neglect Why some products fail