Synonyms of extremely in English:

extremely


See definition of extremely

adverb

1‘we are all extremely worried’

SYNONYMS
very, exceedingly, exceptionally, especially, extraordinarily, to a fault, in the extreme, extra, tremendously, immensely, vastly, hugely, abundantly, intensely, acutely, singularly, significantly, distinctly, outstandingly, uncommonly, unusually, decidedly, particularly, eminently, supremely, highly, remarkably, really, truly, mightily, thoroughly
all that, to a great extent, most, so
Scottish unco
très
Northern English right
informal terrifically, awfully, fearfully, terribly, devilishly, majorly, seriously, mega, ultra, oh-so, stinking, mucho, damn, damned
informal, dated devilish, hellish, frightfully
British informal ever so, well, bloody, dead, dirty, jolly, fair
North American informal real, mighty, powerful, awful, plumb, darned, way, bitching, mad
South African informal lekker
archaic exceeding
ANTONYMS

moderately, slightly, by no means