Antonyms of adj disingenuous

1 sense of disingenuous

Sense 1
disingenuous (vs. ingenuous), artful -- (not straightforward or candid; giving a false appearance of frankness; "an ambitious, disingenuous, philistine, and hypocritical operator, who...exemplified...the most disagreeable traits of his time"- David Cannadine; "a disingenuous excuse")

ingenuous (vs. disingenuous), artless -- (characterized by an inability to mask your feelings; not devious; "an ingenuous admission of responsibility")
        => candid, open, heart-to-heart -- (openly straightforward and direct without reserve or secretiveness; "his candid eyes"; "an open and trusting nature"; "a heart-to-heart talk")
        => undistorted -- (without alteration or misrepresentation; "his judgment was undistorted by emotion")

Similarity of adj disingenuous

1 sense of disingenuous

Sense 1
disingenuous (vs. ingenuous), artful -- (not straightforward or candid; giving a false appearance of frankness; "an ambitious, disingenuous, philistine, and hypocritical operator, who...exemplified...the most disagreeable traits of his time"- David Cannadine; "a disingenuous excuse")
       => distorted, misrepresented, perverted, twisted -- (having an intended meaning altered or misrepresented; "many of the facts seemed twisted out of any semblance to reality"; "a perverted translation of the poem")
          Also See-> insincere#1