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невообразимо adv. stresses
gen.	eminently (VLZ_58); as they come (VLZ_58); beyond reckoning (powerful beyond reckoning – невообразимо могущественный Tiny Tony); unbelievably (April May); unimaginably; stupendously (VLZ_58)
Игорь Миг	in the extreme; mind-bogglingly
explan.	fucking (Andrey Truhachev)
невообразимый adj.
gen.	unimaginable; unthinkable; all-fired; incogitable; undreamt-of; unfancied; unthought-of; undreamed-of; unfancy; dizzying (Notburga); fantastic (Pickman); unimagined (weird); jaw-slackening display (triumfov); all fired; undreamed of; undreamt of; unthought of; unconscionable (Taras); incredible (Anglophile); fanciful (they charged us a fanciful amount for repairs 4uzhoj); unimaginative (Sergei Aprelikov); impossible-to-conceive-of (Wakeful dormouse); beyond imagination (Vadim Rouminsky); nameless (Игорь Глазырин); unfathomable (Taras)
Игорь Миг	jaw-dropping; mind-boggling; head-spinning; funky (British people do some funky things in bed.); wall-to-wall; devastating
amer.	implausible (In addition to being left with only such desperate and implausible options, the Brotherhood faces deeper political problems. Val_Ships)
idiom.	beyond all imagining (Anglophile)
inf.	inconceivable; unconceivable; preposterous (VLZ_58)
Makarov.	undreamed (of)
obs.	inimaginable
slang	ungodly (Interex)

невообразимо: 43 phrases in 12 subjects

American usage, not spelling	1
Art	1
General	14
Idiomatic	1
Informal	3
Literature	1
Makarov	10
Programming	1
Rhetoric	5
Slang	4
Technology	1
Uncommon / rare	1