perfidious

Definitions

per- (through) + fid (faith) + -ous (adj.) = full of broken faith. The adjective of perfidy: describing a person or act that treacherously betrays trust.

Common Collocations

• 1.perfidious act背信的行为
• 2.perfidious friend奸诈的朋友

Example Sentences

• 1.

  The perfidious adviser sold his king's secrets to the enemy.

• 2.

  She never forgave his perfidious betrayal of their friendship.