(of an adjective) Describing a quality that cannot normally be varied because it is extreme (e.g. freezing), absolute (e.g. dead), or classification (e.g. nuclear).
That cannot be graded.
Any adjective that is not gradable.
Of the highest importance.
Highest, supreme; also, chief, leading, pre-eminent.
A chief or superior; (specifically, chiefly South Africa) an African chief having the highest status in a region; a paramount chief.