Definition of "antimask" [an•ti•mask]

• Obsolete form of antimasque. (noun)
• Opposing masks. (adjective)

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• "Eugene O'Donnell, a professor of police science at John Jay College of Criminal Justice, said arrests for violating the antimask laws are uncommon."
• "Since Saturday, five people connected with the protest to "occupy" Wall Street have been issued a violation for running afoul of the antimask law, according to police."
• "On the other hand, some people will be reluctant to express unpopular views unless they can do so anonymously, so antimask laws deter some unpopular speech."