paramount
Highest, supreme; also, chief, leading, pre-eminent.
Of the highest importance.
(obsolete) Of a law, right, etc.: having precedence over or superior to another.
A chief or superior; (specifically, chiefly South Africa) an African chief having the highest status in a region.
(obsolete) A supreme ruler; an overlord; (specifically, historical) in the feudal system, a landowner who did not derive ownership of the land from anyone else, and who was able to grant fees to others.