Simple Definition of disloyal
: failing to support or be true to someone or something : not loyal or faithful to your friends, family, country, etc.
Full Definition of disloyal
: lacking in loyalty; also : showing an absence of allegiance, devotion, obligation, faith, or support <his disloyal refusal to help his friend>
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>
Origin of disloyal
Middle English, from Anglo-French desleial, desloial, from des- dis- + leal loyal
First Known Use: 15th century
Synonym Discussion of disloyal
DISLOYAL Defined for Kids
Definition of disloyal for Students
: failing to support or be true <disloyal friends>
Seen and Heard
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