Synonym Chooser

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

Some common synonyms of disloyal are faithless, false, perfidious, traitorous, and treacherous. While all these words mean "untrue to what should command one's fidelity or allegiance," disloyal implies a lack of complete faithfulness to a friend, cause, leader, or country.

disloyal to their country

Where would faithless be a reasonable alternative to disloyal?

The words faithless and disloyal can be used in similar contexts, but faithless applies to any failure to keep a promise or pledge or any breach of allegiance or loyalty.

faithless allies

When would false be a good substitute for disloyal?

Although the words false and disloyal have much in common, false stresses the fact of failing to be true in any manner ranging from fickleness to cold treachery.

betrayed by false friends

How are the words perfidious and faithless related as synonyms of disloyal?

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

a perfidious double-crosser

When is it sensible to use traitorous instead of disloyal?

In some situations, the words traitorous and disloyal are roughly equivalent. However, traitorous implies either actual treason or a serious betrayal of trust.

traitorous acts punishable by death

When might treacherous be a better fit than disloyal?

The words treacherous and disloyal are synonyms, but do differ in nuance. Specifically, 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 disloyal As the Times reports, the first stars Arthur’s nephew, Sir Gawain, a knight who faces off with Germanic Saxons invading from mainland Europe and disloyal English nobility—including his father. Sonja Anderson, Smithsonian Magazine, 2 Apr. 2025 Remember Gartner’s finding that 96% of customers become disloyal after a high-effort interaction. Roger Dooley, Forbes, 17 Mar. 2025 Any policy that deviates from the central government’s could be seen as politically disloyal. Vivian Wang, New York Times, 20 Feb. 2025 That is part of a broader push to dismantle or remake institutions that are considered by the administration to be wasteful, disloyal or standing in the way of its objectives. Roxana Popescu, San Diego Union-Tribune, 6 Feb. 2025 See All Example Sentences for disloyal
Recent Examples of Synonyms for disloyal
Adjective
  • Michael Fassbender plays a British intelligence officer tasked with finding who leaked a top-secret software program and betrayed their country, and the list of five potentially traitorous suspects includes his own high-profile wife (Cate Blanchett).
    Brian Truitt, USA Today, 10 May 2025
  • Smith made out their former collaborators to be ungrateful and traitorous, and the kids weren't given the space to question her command.
    Zoey Lyttle, People.com, 18 Apr. 2025
Adjective
  • The cooling system in her second-story apartment in Albuquerque, New Mexico, had always been unreliable.
    Ignacio Calderon, USA Today, 21 May 2025
  • This showed that changes in the truck's speed produced turbulence in the liquid helium, making measurements of its presence unreliable.
    John Timmer, ArsTechnica, 19 May 2025

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Cite this Entry

“Disloyal.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/disloyal. Accessed 2 Jun. 2025.

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