turncoat Meaning, Definition & Usage

  1. noun a disloyal person who betrays or deserts his cause or religion or political party or friend etc.
    ratter; renegade; deserter; recreant; apostate.

WordNet


Turn"coat` noun
Definitions
  1. One who forsakes his party or his principles; a renegade; an apostate; a defector to the enemy.
    He is a turncoat, he was not true to his profession. Bunyan.

Webster 1913