plausible deniability

noun

The organization of clandestine activity in such a way that knowledge of its existence may be denied by those in authority.

Meanings

nounplausible deniability (usually uncountable, plural plausible deniabilities)

plural plausible deniabilities

  1. uncountableusuallybusinessThe organization of clandestine activity in such a way that knowledge of its existence may be denied by those in authority.

    Americans would stand out in the Laotian jungle, and Washington needed to retain plausible deniability. CIA officials demanded that Laotians on their payroll carry out the mission.

    2001 June 24, Douglas C. Waller, “The Americans Left Behind”, in Time, retrieved 08 Jun 2015
    2 more examples

    Lieut. Col. Oliver L. North may have added a memorable phrase to the lexicon of political obfuscation at the Iran-contra hearings when he referred to his concern for "plausible deniability" as he carried out his covert activities.

    1987 July 16, Meyer Rangell, “Letters: Deniable Plausibility?”, in New York Times, retrieved 08 Jun 2015

    No longer is plausible deniability acceptable, either for boards or for management. Corporate and nonprofit boards alike are expected to know of problems that are brewing deep within their organizations.

    2014 October 8, Davia Temin, “The Role Of Boards In Crisis”, in Forbes, retrieved 08 Jun 2015

Synonyms & antonyms

Origin

Originally CIA jargon from the 1950s, and popularized during the Watergate scandal (1970s).

Full word history & related roots →

Translations

Finnish uskottava kiistettävyys
  • uskottava kiistettävyysorganization of a clandestine activity
French déni plausible
  • déni plausibleorganization of a clandestine activity
German glaubhafte Abstreitbarkeit, glaubhafte Bestreitbarkeit
  • glaubhafte Abstreitbarkeitorganization of a clandestine activity
  • glaubhafte Bestreitbarkeitorganization of a clandestine activity
Polish wiarygodne zaprzeczenie
  • wiarygodne zaprzeczenieorganization of a clandestine activity
Russian правдоподо́бное отрица́ние
  • правдоподо́бное отрица́ние (pravdopodóbnoje otricánije)organization of a clandestine activity
Cite this entry
APA

plausible deniability. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/plausible%20deniability

MLA

“plausible deniability.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/plausible%20deniability. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “plausible deniability,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/plausible%20deniability.

Source: plausible deniability on Wiktionary, CC BY-SA 4.0.