/ Dictionary / Index D deceitful: Meaning and Definition of Find definitions for: de•ceit•ful Pronunciation: (di-sēt'ful), [key] — adj. given to deceiving: A deceitful person cannot keep friends for long. intended to deceive; misleading; fraudulent: a deceitful action. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: deceitful (Thesaurus) deceit deceivable Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language