• synonyms


[trey-ter-uh s]
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  1. having the character of a traitor; treacherous; perfidious.
  2. characteristic of a traitor.
  3. of the nature of treason; treasonable: a traitorous act.
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Origin of traitorous

1350–1400; Middle English treterous, traytrous < Old French traitreus; see traitor, -ous
Related formstrai·tor·ous·ly, adverbtrai·tor·ous·ness, nounnon·trai·tor·ous, adjectivenon·trai·tor·ous·ly, adverbnon·trai·tor·ous·ness, nounun·trai·tor·ous, adjectiveun·trai·tor·ous·ly, adverbun·trai·tor·ous·ness, noun


See more synonyms for traitorous on Thesaurus.com
1–3. disloyal, treasonous, faithless.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Word Origin and History for traitorous


late 14c., apparently from Old French traitreus (mid-13c.), from traitor (see traitor).

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Online Etymology Dictionary, © 2010 Douglas Harper