ultra- — OET · Shobdo

ultra-

combining form

an ultra-modern design:

extremely, exceedingly, excessively, immensely, especially, exceptionally, unusually, extraordinarily, remarkably, uncommonly, extra;

Northern English right;

Scottish unco;

informal mega, mucho, seriously, majorly, oh-so;

British, informal jolly, dead, ever so, well, fair;

North American, informal real, mighty, awful, plumb, powerful, way;

South African, informal lekker;

informal , dated devilish, frightfully;

archaic exceeding.

noun

(ultra)

there is a new school of ultras in the animal rights movement:

extremist, radical, fanatic, zealot, diehard, revolutionary, rebel, militant, subversive.

ultra- Oxford Dictionary of English