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безупречность n stresses
gen.	perfection; faultlessness; impeccability; scrupulousness; scrupulosity; integrity (MichaelBurov); indefectibility; flawlessness (Olga Almeida)
book.	irreproachability
busin.	blamelessness; distinction
cloth.	impeccancy (из О.Генри O2cat)
obs.	candour; irreprehensibleness; irreproachableness

безупречность: 13 phrases in 4 subjects

American usage, not spelling	1
General	5
Industry	1
Law	6