disloyal

adjective

dis·​loy·​al (ˌ)dis-ˈlȯi(-ə)l How to pronounce disloyal (audio)
: lacking in loyalty
also : showing an absence of allegiance, devotion, obligation, faith, or support
his disloyal refusal to help his friend
disloyally adverb
Choose the Right Synonym for disloyal

faithless, false, disloyal, traitorous, treacherous, perfidious mean untrue to what should command one's fidelity or allegiance.

faithless applies to any failure to keep a promise or pledge or any breach of allegiance or loyalty.

faithless allies

false stresses the fact of failing to be true in any manner ranging from fickleness to cold treachery.

betrayed by false friends

disloyal implies a lack of complete faithfulness to a friend, cause, leader, or country.

disloyal to their country

traitorous implies either actual treason or a serious betrayal of trust.

traitorous acts punishable by death

treacherous implies readiness to betray trust or confidence.

a treacherous adviser

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

a perfidious double-crosser

Examples of disloyal in a Sentence

It would be disloyal to abandon them. we sensed that he was disloyal and would eventually turn on us
Recent Examples on the Web
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.
Trump didn't say why Haugh was pushed out, but one of Trump's most controversial outside supporters, Laura Loomer, took credit for the move, posting on X, quote, NSA Director Timothy Haugh and his deputy Wendy Noble have been disloyal to President Trump. ABC News, 6 Apr. 2025 The dismissals took place after Loomer told Trump the officials were disloyal, CNN reported. Lee Habeeb, MSNBC Newsweek, 4 Apr. 2025 Many observers also fear that Trump's Justice Department will prosecute his political opponents — not just Democrats, but also Republicans who are perceived as disloyal. Nathaniel Rakich, ABC News, 21 Jan. 2025 She’s hurt by a lover’s betrayal, but more hurt that her suspicions of his disloyal nature were proven right from the beginning. Jessica Nicholson, Billboard, 24 Feb. 2025 See All Example Sentences for disloyal

Word History

Etymology

Middle English, from Anglo-French desleial, desloial, from des- dis- + leal loyal

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of disloyal was in the 15th century

Browse Nearby Words

Cite this Entry

“Disloyal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/disloyal. Accessed 15 Apr. 2025.

Kids Definition

disloyal

adjective
dis·​loy·​al (ˈ)dis-ˈlȯi(-ə)l How to pronounce disloyal (audio)
: lacking in loyalty
disloyally adverb
disloyalty
-ˈlȯi(-ə)l-tē
noun

More from Merriam-Webster on disloyal

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!