Crossword clues for the word: DILIGENT The word DILIGENT has appeared as an answer to at least 10 crossword clues on different crossword puzzles. Crossword clues for DILIGENT Showing 1 to 10 of 10 results Clue(s) Assiduous Careful and persevering Conscientious Conscientious editing changed round novel's ending Hard-working I'd tingle, turning industrious Industrious Painstaking Sedulous Unlike a slacker