Ukrainian ⇄ English

нестійкий adj.
gen.	broken (про погоду); catching (про погоду); chameleonic; dickey; dicky; drunk; erratic (про погляди); fluctuable; fluctuant; fluctuating; fluffy; fluid; frail; fugitive; groggy; inconstant; infirm; instable; liquid (про переконання тощо); mugwump (про члена організації); non-persistent (про газ тощо); non-resistant; precarious; quaky; ramshackle; rickety; rocky; shaky; shifty; sliding; staggering; tickle; ticklish; tickly; top-heavy; tottery; transitional; transitionary; transitive; unbalanced; unballasted; unequable; unfixed; unsettled; unstable; unsteadfast; unsteady; vagrant; variable; various; waggly; wasty; wavery; wavy; weakly (морально); weathercock; yielding
amer., inf.	shackly
chem.	unstable (про сполуку)
dipl.	feverish
econ.	changeable
inf.	chancy; sliddery; wambly; wibbly-wobbly
inf., fig.	wiggle-waggle
IT	erratic; fugitive (колір)
mil.	non-persistent; soft (про ціни, валюту тощо); transient; amoeba-type; brittle
O&G	cavy; non-steady; weak
phys.	astatic
phys., chem.	labile
нестійка adj.
O&G	unsettled (про породу)

нестійкий : 46 phrases in 14 subjects

Astronautics	3
Aviation	1
Diplomacy	4
Economics	3
Figurative	1
General	9
Information technology	3
Law	7
Marketing	3
Meteorology	2
Military	3
Oil and gas	5
Physics	1
Technology	1