English Explanatory Dictionary

treasonous

English dictionary entry

Meanings

adj
  1. Like or in the way of treason.

Word forms

treasonous

Etymology

From treason + -ous.

Synonyms

dastardly perfidious traitorous booky disleal disloyal double-crossing double-dealing double-faced double-hearted doublehearted faithless false falseheart false-hearted guiled guileful hollow-hearted illoyal infidelitous insidious Judaslike Judasly nonfaithful proditorious proditory Punic ratlike recreant renegade reptilian reptitious swike traitorish traitorlike traitorly traitorsome treacherous treachersome trothless unfaithful unleal unloyal unsteadfast untrue viperish viperous

Derived words

nontreasonous treasonously untreasonous
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