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изощрённый prtc. stresses
gen.	oversubtle (Andrey Truhachev); elaborate (Abysslooker); refined; subtle; sophisticated (о вкусе, манерах); fastidious; overnice; precieux (о слоге, одежде); devious (izet); farfetched (xenkis); ornate (о стиле Aly19); highly sensitive; convoluted (Notburga); finical; finicking; finicky (во вкусах, пристрастиях); finikin; intricate (starkside); conceited; over-nice; ingenious (Stas-Soleil); over-subtle (Andrey Truhachev)
Gruzovik	highly-sensitive; acute; keen
busin.	choice; sophisticated
data.prot.	smart (об угрозах безопасности translator911)
Gruzovik, obs.	sharp
obs., poetic	sharp
polit.	shrewd (Alex_Odeychuk)
изощриться v
gen.	excel; lean over backwards to achieve something; try to do one's best to achieve something; try very hard
Gruzovik	acquire refinement (pf of изощряться); become refined (pf of изощряться)
Makarov.	acquire refinement (в чём-либо)
изощрить v
Gruzovik	cultivate (pf of изощрять)
Gruzovik, obs.	make sharp (pf of изощрять)
Makarov.	perfect; refine; sharpen

изощренный : 64 phrases in 19 subjects

Advertising	1
Architecture	1
Computer networks	3
Diplomacy	7
Electronics	4
General	28
Information security and data protection	1
Information technology	2
Law	4
Makarov	2
Mass media	1
Mathematics	1
Politics	1
Programming	1
Psychotherapy	1
Religion	1
Robotics	1
Scientific	1
Security systems	3