Crossword clues for the word: INFIRM The word INFIRM has appeared as an answer to at least 11 crossword clues on different crossword puzzles. Crossword clues for INFIRM Showing 1 to 11 of 11 results Clue(s) Ailing Feeble Frail Lacking bodily or muscular strength Not fit to be part of the business Old & weak Old %26 weak Weak Weak and feeble Weak in body Weak in health