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Synonyms

disloyal

American  
[dis-loi-uhl] / dɪsˈlɔɪ əl /

adjective

  1. false to one's obligations or allegiances; not loyal; faithless; treacherous.

    Synonyms:
    treasonable, traitorous, perfidious, unfaithful

disloyal British  
/ dɪsˈlɔɪəl /

adjective

  1. not loyal or faithful; deserting one's allegiance or duty

"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

  • disloyalist noun
  • disloyally adverb

Etymology

Origin of disloyal

1470–80; < Middle French desloial, Old French desleal, equivalent to des- dis- 1 + leal loyal

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.

But we find that these generations are particularly brand disloyal.

From Barron's • Apr. 9, 2026

They were trying to avoid seeming judgmental, unenlightened or disloyal to a socially expected script.

From The Wall Street Journal • Jan. 2, 2026

That said, the expectation from some that Powell will be shooting her mouth off or frequently public disloyal is overdone.

From BBC • Oct. 25, 2025

Beyond the restrictions on media outlets, the Pentagon has taken a series of steps this year to try and identify officials who are deemed disloyal or who provide information to reporters.

From Los Angeles Times • Oct. 14, 2025

“They said there is a list circulating, Ifeoma, of lecturers who are disloyal to the university. They said they might be fired. They said your name is on it.”

From "Purple Hibiscus" by Chimamanda Ngozi Adichie