from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Lacking loyalty. See Synonyms at faithless.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of or pertaining to an absence of loyalty; faithless, traitorous.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Not loyal; not true to a sovereign or lawful superior, or to the government under which one lives; false where allegiance is due; faithless

from The Century Dictionary and Cyclopedia

  • Not true to one's allegiance; false to one's obligation of loyalty to a sovereign, state, or government; not loyal.
  • Not true to one's obligations or engagements; inconstant in duty or in love; faithless; perfidious.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. deserting your allegiance or duty to leader or cause or principle
  • adj. showing lack of love for your country


Late Middle English, from Old French desloial : des-, dis- + loial, loyal; see loyal.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Middle English, from Anglo-Norman desleal, desloial (Wiktionary)



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