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   treach·er·ous

   /ˈtreCH(ə)rəs/

   adjective

   • 1. guilty of or involving betrayal or deception: "a treacherous Gestapo agent" Similar traitorousdisloyalperfidiousfaithlessunfaithfulduplicitousfalse-hearteddeceitfulfalseuntruebackstabbingdouble-crossingdouble-dealingtwo-facedJanus-faceduntrustworthyunreliableundependablefickleapostaterenegadesubversiveseditiousrebelliousmutinousbreakawaytreasonabletreasonousinformal:two-timingrare:PunicOpposite loyalfaithful
   • ▪ (of ground, water, conditions, etc.) hazardous because of presenting hidden or unpredictable dangers: "a vacationer was swept away by treacherous currents" Similar dangeroushazardousperilousunsafeprecariousriskydeceptiveunreliableundependableunstableicyice-coveredslipperyglassyinformal:diceyhairyslippygnarlyOpposite safereliable

   Word Origin Middle English (in treacherous (sense 1 of the adjective)): from Old French trecherous, from trecheor ‘a cheat’, from trechier ‘to cheat’.

   Derivatives

   • 1. treacherously adverb
   • 2. treacherousness noun

   Scrabble Points: 16

   • T

     1

   • R

     1

   • E

     1

   • A

     1

   • C

     3

   • H

     4

   • E

     1

   • R

     1

   • O

     1

   • U

     1

   • S

     1

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