Esp. of a monarch: reigning, ruling. In predicative use and attributive.

Having the status of a monarch. Cf. monarchal, adj. 3. Obsolete. rare.

Having the status of a monarch; that exercises the powers or functions of a monarch. Now rare.

That monarchizes.

Having the power or functions of a monarch; having undivided rule; †autocratic (obsolete).

Having the power or functions of a monarch. Cf. monarchical, adj. 1b. (In quots. 1632 1632 in extended use.) Obsolete.

Acting as or holding the position of regent of a country. Also: †ruling as sovereign (obsolete). Usually used postpositively.

In extended use: currently holding or laying claim to a position of dominance, status, or influence; (now) esp. (of a sportsperson or team)…