Opposed to democracy or principles of democratic governance and equal political participation.
From anti- (against) + democratical (democratic + -al, alternate adjective form from older usage). The -al ending was more common in 16th-18th century English before -ic became standard.
Antidemocratical is such an archaic-sounding word that it appears almost entirely in historical texts about 18th-19th century political theory—modern writers just say 'antidemocratic,' showing how English constantly sheds older morphological variations.
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