CONTUMAX, civ. law. One accused of a crime who refuses to appear and answer to the charge. An outlaw.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
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(4) The adjective ferox and others like it--atrox (cruel, dreadful, unrelenting) and contumax (unyielding, defiant, willfully disobedient to civil authority)--have typically been interpreted as laudatory if applied to a man, indicating a bold, fighting spirit, but wholly pejorative when applied to a woman.
The noun contumacia (inflexibility, stubbornness) and the adjective contumax (insolent, obstinate, stiff-necked, stubborn) were usually used in a pejorative sense.
While many modern commentators have viewed harsh-sounding adjectives like atrox, contumax, ferox, etc., as Tacitus's effort to describe Agrippina's behavior as negatively masculine, they have not examined to any length how he used these adjectives to describe her freedom of expression.
10.65 where his contumax capillis is contrasted with the pathic's being levis.
contumax Kempf, es probable que las otras especies tengan habitos similares.