Synonyms and Antonyms of mortally
- I'm mortally certain that I've seen that guy before
achingly, almighty, archly, awful, awfully, badly, beastly, blisteringly, bone, colossally, corking, cracking, damn, damned, dang, deadly, desperately, eminently, enormously, especially, ever, exceedingly (also exceeding), extra, extremely, fabulously, fantastically, far, fiercely, filthy, frightfully, full, greatly, heavily, highly, hugely, immensely, incredibly, intensely, jolly, majorly, mightily, mighty, monstrous [chiefly dialect], most, much, particularly, passing, rattling, real, really, right, roaring, roaringly, seriously, severely, so, sore, sorely, spanking, specially, stinking, such, super, supremely, surpassingly, terribly, that, thumping, too, unco, uncommonly, vastly, very, vitally, way, whacking, wicked, wildly
absolutely, altogether, completely, downright, entirely, flat-out, fully, positively, purely, radically, thoroughly, totally, utterly, wholly
exceptionally, notably, remarkably
considerably, extensively, significantly, substantially
appreciably, discernibly, markedly, noticeably, obviously, palpably, plainly, visibly
astronomically, grandly, monstrously, monumentally