/ Dictionary / Index D disingenuous: Meaning and Definition of Find definitions for: dis•in•gen•u•ous Pronunciation: (dis"in-jen'y-us), [key] — adj., lacking in frankness, candor, or sincerity; falsely or hypocritically ingenuous; insincere: Her excuse was rather disingenuous. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: disingenuous (Thesaurus) disinformation disinherit Related Content Daily Word Quiz: bibliophile Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language