чрезвычайно

1) General subject: amain, appallingly, as anything, as can be, as they make 'em, as they make them, awfully, beyond measure, billy oh, capitally, dreadfully, eminently, enormously, ever so, exceedingly, extraordinarily, extremely, ghastly, grossly, highly, in a great (large) measure, in the extreme, intensely, largely, like sixty, mightily, mighty, mortal, most, only too, out of measure, particularly, passing, plaguy, plenty, rattling, ripping, sevenfold, severely, sore, spanking, surpassingly, the worst kind, to the world, up to the nines, utterly, immensely, vastly, hugely, to a fault, as they come, massively, too, outstandingly

2) Colloquial: almighty, anxiously, confoundedly, deadly, jolly, like anything, like mad, uncommon, with a vengeance (that was luck with a vengeance! - нам чертовски повезло!)

3) Dialect: gallows, main, purely, woundy

4) American: (in) the worst way, real

5) Obsolete: woundily

6) Jocular: muchly

7) Mathematics: especially, unusually, very

8) Australian slang: bloody

9) Scottish language: unco

10) Jargon: all-fired, sticking, something awful, corking, gosh-awful, something, stinking

11) Emotional: billy, crazy, damnably, thundering, tremendously

12) American English: worst kind

13) Makarov: above measure, in a great measure, in a large measure, no end, overwhelmingly, tremendous

14) Emotional: cruel, really, roaring