spec. Of government or rule: monarchical, vested in a monarch; (of a place) ruled by a monarch.

Of a state, etc.: that is ruled by a monarch. Of government or an institution: monarchical.

Of the nature of or having the characteristics of a monarchy; esp. (of government) vested in a monarch.

Of, relating to, or of the nature of a monarchy; that is under the dominion of a monarch. Cf. monarchal, adj. 2.

Of a government: having the nature or characteristics of a monarchy. Cf. monarchical, adj. 2.