The Collaborative International Dictionary
Antimonarchist
Antimonarchist \An`ti*mon"arch*ist\, n. An enemy to monarchial government.
Wiktionary
antimonarchist
a. Opposed to monarchy. n. One who is opposed to monarchy.
Usage examples of "antimonarchist".
Warlike, secular, antimonarchist, they advocated a return to ancient Starbridge values and denounced the government of Argon Starbridge, which was sunk in bureaucracy and superstition.