ˌd(y)üd.əˈragənə̇st, -raig- noun
( -s )
Etymology: Greek deuteragōnistēs, from deuter- deuter- (I) + agōnistēs combatant, actor — more at agonist
1. : the actor taking the part of second importance in a classical Greek drama
2. : a person who serves as a foil to another