Con·tu·ma·cy n.; pl. Contumacies .
1. Stubborn perverseness; pertinacious resistance to authority.
The bishop commanded him . . . to be thrust into the stocks for his manifest and manifold contumacy. --Strype.
2. Law A willful contempt of, and disobedience to, any lawful summons, or to the rules and orders of court, as a refusal to appear in court when legally summoned.
Syn: -- Stubbornness; perverseness; obstinacy.