/ Dictionary / Index D difficile: Meaning and Definition of Find definitions for: dif•fi•cile Pronunciation: (dif"i-sēl' Fr. dē-fē-sēl'), [key] — adj. hard to deal with, satisfy, or please. hard to do; difficult. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. differentiator difficult Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language