Synonyms of ultra- in English:

ultra-


See definition of ultra-

1‘an ultra-conservative politician’

SYNONYMS
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

1ultra‘there is a new school of ultras in the animal rights movement’

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