duplicitous

duplicity +‎ -ous

• (Received Pronunciation) IPA^(key): /djʊˈplɪsɪtəs/
• (US) IPA^(key): /duːˈplɪsətəs/, /djuːˈplɪsətəs/

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duplicitous (comparative more duplicitous, superlative most duplicitous)

1. Given to or marked by deliberate deceptiveness in behavior or speech.
   • 2017 January 19, Peter Bradshaw, “T2 Trainspotting review – choose a sequel that doesn't disappoint”, in The Guardian‎:

     It reunites the horribly duplicitous skag-addicted non-heroes of the first movie about twentysomethings trying to get off heroin in Edinburgh, and finding that they have nothing very much to put in its place.

   • 2023 February 19, Patrick Wintour, “Ukraine war ‘over’ unless EU boosts military support, says top diplomat”, in The Guardian‎, ISSN 0261-3077:

     Russia played on those feelings by attacking the French president, Emmanuel Macron […] , saying Moscow still remembered the fate of Napoleon Bonaparte and accusing the French president of duplicitous diplomacy with the Kremlin.

• deceitful
• double-dealing
• two-faced

• duplicate
• duplicitously
• duplicitousness
• duplicity

• duplicitous at OneLook Dictionary Search