Synonym Chooser

How is the word traitorous different from other adjectives like it?

Some common synonyms of traitorous are disloyal, faithless, false, perfidious, and treacherous. While all these words mean "untrue to what should command one's fidelity or allegiance," traitorous implies either actual treason or a serious betrayal of trust.

traitorous acts punishable by death

Where would disloyal be a reasonable alternative to traitorous?

The words disloyal and traitorous can be used in similar contexts, but disloyal implies a lack of complete faithfulness to a friend, cause, leader, or country.

disloyal to their country

When could faithless be used to replace traitorous?

The words faithless and traitorous are synonyms, but do differ in nuance. Specifically, faithless applies to any failure to keep a promise or pledge or any breach of allegiance or loyalty.

faithless allies

When is it sensible to use false instead of traitorous?

While in some cases nearly identical to traitorous, false stresses the fact of failing to be true in any manner ranging from fickleness to cold treachery.

betrayed by false friends

How do perfidious and faithless relate to one another, in the sense of traitorous?

Perfidious adds to faithless the implication of an incapacity for fidelity or reliability.

a perfidious double-crosser

In what contexts can treacherous take the place of traitorous?

Although the words treacherous and traitorous have much in common, treacherous implies readiness to betray trust or confidence.

a treacherous adviser

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of traitorous Guinevere, usually relegated to the thankless role of traitorous wife, acts here as Arthur’s beloved confidante. Elizabeth Hand, Washington Post, 16 July 2024 And somewhere between them on the war/peace continuum sit the men on Rhaenyra’s borderline traitorous council. Amanda Whiting, Vulture, 30 June 2024 Simultaneously, Hal is on a call with President Rayburn to brief him on Penn's traitorous schemes. Samantha Stutsman, People.com, 5 Nov. 2024 Assassinations first target Republicans deemed traitorous. Charles Bethea, The New Yorker, 4 Nov. 2024 See All Example Sentences for traitorous
Recent Examples of Synonyms for traitorous
Adjective
  • Uncanny valley is a term for a reason: The brain can only take so much false information that’s appears to be real.
    Kate Aurthur, Variety, 5 May 2025
  • Beach furniture and other recreational equipment (e.g., cabanas, umbrellas, canoes, small boats, bicycles) can reduce nesting success and increase false crawls on nesting beaches when left out overnight.
    Lexie Beach, The Orlando Sentinel, 2 May 2025
Adjective
  • For Tesla and other American manufacturers, the path forward is treacherous.
    Jackie Snow, Quartz, 28 Apr. 2025
  • Kang’s character, Lee Kang-su, walks a treacherous line between crime and law enforcement – a balancing act that presented unique acting challenges.
    Naman Ramachandran, Variety, 24 Apr. 2025
Adjective
  • Poor-quality or biased data can lead to inaccurate threat detection, making security systems unreliable.
    Melkon Hovhannisyan, Forbes.com, 29 Apr. 2025
  • The new prosecution also agreed that the Snapchat evidence was unreliable, but went a step further than the judge, dismissing the case entirely.
    Tresa Baldas, USA Today, 28 Apr. 2025
Adjective
  • America Great Again base as disloyal or insufficiently conservative.
    Ramsey Touchberry, The Washington Examiner, 26 Apr. 2025
  • His return to Michigan in 2023 failed to appease Democrats, who labeled him a disloyal opportunist in his race against Ms. Slotkin.
    Taylor Robinson, New York Times, 14 Apr. 2025
Adjective
  • Jake Gyllenhaal is his foil as the perfidious Iago, who goads Othello into unreasoning jealousy with lies about his beloved Desdemona (Molly Osborne).
    New York Times, New York Times, 17 Feb. 2025
  • Since then, Putin has sought instead to rally the public to the defense of a motherland besieged by the perfidious and cunning West.
    Leon Aron, The Atlantic, 5 Dec. 2024
Adjective
  • In 2016, a record number of faithless votes were cast.
    Robert Alexander and Anna Dawley, MSNBC Newsweek, 23 Apr. 2025
  • Don Cheadle and Benicio del Toro are both quite good as part of a team that’s tasked with stealing a secret document, setting the stage for a drama involving gangsters, faithless lovers, and white-collar crooks.
    Tim Grierson, Vulture, 24 Jan. 2025
Adjective
  • Rebecca also had suspicions that Biggs-Marvin had been unfaithful to her.
    Caroline Blair, People.com, 8 May 2025
  • While together, Odom struggled with addiction and was unfaithful in their relationship.
    Michael Nied, People.com, 16 Apr. 2025
Adjective
  • But a representative for Henry Taylor, the artist who collaborated with Pharrell Williams on Lisa's look, told Vulture that the speculation is wholly untrue.
    EW.com, EW.com, 7 May 2025
  • However, this rumor is untrue as there are only small bottom-feeding sharks in San Francisco Bay, according to BOP.
    Melina Khan, USA Today, 5 May 2025

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Cite this Entry

“Traitorous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/traitorous. Accessed 13 May. 2025.

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