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Definition of disloyalty
disloyalty
/dɪsˈlɔɪ.əl.ti/
dis · loy · al · ty
Adverb:disloyally
•Plural:disloyalties
•Adjective:disloyal
disloyalty Lexical Profile
CEFR
B2
Grade
7
Tier
2
Usage
Top 10k
Syllables
4
disloyalty Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
The quality of being unfaithful or failing to support someone or something to which one owes allegiance; an instance or act of betraying trust.
Example
"The manager viewed the employee's secret negotiations with a rival firm as an unforgivable act of disloyalty."
Synonyms
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Word Origin & Etymology
Borrowed in the late 15th century from Old French desloiauté, formed from the prefix des- ('lack of') and loiauté ('loyalty'), ultimately tracing back to Latin legalis ('pertaining to the law').
Cite this Entry
Wordmom. (2026). Definition of Disloyalty. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/disloyalty