A person who deserts one party or cause in order to join an opposing one: they denounced him as a turncoat
More example sentences
- Wells, a white captive raised by the Miami, was a turncoat who deserted his adopted family to join General Wayne.
- Who needs this party of turncoats?
- Redeem yourself or forever be consigned to history's judgment of political turncoats, renegades and saboteurs.