Pertaining to a monarch or to monarchy; characteristic of or subject to a monarch; of the nature of monarchy: as, monarchical rule or methods; a monarchical country or government.Of or pertaining to government by a monarch.Regarding monarchy as the best form of government; adhering to the principles of monarchy. The name Monarchical party was often applied to the Federalists of the United States by their opponents.Also monarchial.Synonyms See prince and royal.