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Definitions of treacherous
  1. adjective
    tending to betray; especially having a treacherous character as attributed to the Carthaginians by the Romans
    "the fiercest and most treacherous of foes" "treacherous intrigues"
  2. adjective
    dangerously unstable and unpredictable
    "treacherous winding roads"
Explanation of treacherous
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