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disingenuous

American  
[dis-in-jen-yoo-uhs] / ˌdɪs ɪnˈdʒɛn ju əs /

adjective

  1. lacking in frankness, candor, or sincerity; falsely or hypocritically ingenuous; insincere.

    Her excuse was rather disingenuous.


disingenuous British  
/ ˌdɪsɪnˈdʒɛnjʊəs /

adjective

  1. not sincere; lacking candour

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of disingenuous

First recorded in 1645–55; dis- 1 + ingenuous

Explanation

Use the adjective disingenuous to describe behavior that's not totally honest or sincere. It's disingenuous when people pretend to know less about something than they really do. Disingenuous combines dis-, meaning "not," with ingenuous (from the Latin gen-, meaning "born") which was originally used to distinguish free-born Romans from slaves, and later came to mean "honest" or "straightforward." So disingenuous means "dishonest." Ingenuous is less common now than disingenuous, but we still use it for someone who is sincere to the point of naiveté. A good synonym is insincere.

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Vocabulary lists containing disingenuous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As is the case throughout, the questioners—the chairman, played with snide malice by Michael McKean, is flanked by two “investigators”—are pious, bullying and laughably disingenuous.

From The Wall Street Journal • Jun. 18, 2026

You can’t name it or force it into a box, and if you do, the result will always read as disingenuous.

From Salon • Jun. 18, 2026

My audience can smell something disingenuous pretty quick.

From Los Angeles Times • Jun. 18, 2026

Nvidia chief executive Jensen Huang and OpenAI CEO Sam Altman, whose comments have stoked anxiety about AI's potential effects on society, are now arguing that doom-laden warnings were overblown or, in some cases, disingenuous.

From Barron's • May 27, 2026

If I feel they have ulterior motives or are the slightest bit disingenuous, I try to shelter the kids from them.

From "The Freedom Writers Diary" by The Freedom Writers

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