Perfidious (adjective)

Having a tendency to betray trust or be disloyal, particularly in matters of allegiance or trust.

Origin:

Derived from the latin word 'perfidia' meaning 'faithlessness', perfidious refers to being disloyal or treacherous.

Examples:

  1. He was branded as a perfidious traitor for betraying his country.
  2. She felt that his actions were perfidious and that he couldn't be trusted.
  3. His perfidious behavior caused his friends and family to turn their backs on him.
  4. She accused him of being perfidious and told him that she never wanted to see him again.
  5. The perfidious nature of his actions was revealed when he was caught in the act of betrayal.
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