stubborn perverseness or rebelliousness; willful and obstinate resistance or disobedience to authority.
Origin: 1150–1200;Middle Englishcontumacie < Latincontumācia, equivalent to contumāc-, stem of contumāx unyielding, stubborn (con-con- + -tum- of uncertain sense, though connected by classical authors with both contemnere to regard with contempt and tumēre to swell) + -āx adj. suffix) + -ia-ia