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угрожающий adj. stresses
gen.	forbidding; critical; denunciatory; grave; nasty; ominous (But with international attempts to de-escalate the crisis in Ukraine effectively shredded, Biden's visit appears largely symbolic and takes place against a backdrop of ominous Kremlin rhetoric. 4uzhoj); threatening; ugly; comminatory; intimidatory; looming; minacious; presageful; dangerous; impendent; menacing; rampant; wrathful; thundery; wrath; wrathy; baleful (Ista); ill-omened (deep in thought); imminent; minatory; alarming (о ситуации Abysslooker)
Игорь Миг	breakneck
amer.	squally; ball-busting (Taras)
biol.	nociceptive
busin.	impending
Makarov.	fulminating; frowning
med.	life‐threatening (yanadya19)
poetic	horrent
zool.	agonistic (о поведении по отношению к особям того же вида); agonistical (о поведении по отношению к особям того же вида)
угрожать v
gen.	threaten (with dat.); impend; menace; denounce; ramp about; comminate; bluster; endanger (чему-либо); intimidate; shore; stare somebody in the face; use threats (кому-либо); utter threats (кому-либо); stare in the face; draw on (оружием, кому-либо); be a threat to (Lenochkadpr); brandish; hover (об опасности); huff; ramp; utter threat (Andrey Truhachev); scowl; show the teeth
Игорь Миг	be on the horizon; scuttle
adv.	pose threat
busin.	bully; threaten
construct.	endanger (напр., жизни)
dipl.	loom; launch threats against (кому-либо)
fig.	hang over
formal	issue threats (ART Vancouver)
idiom.	wave a stick at (someone – кому-либо Abysslooker)
law	pose a threat
Makarov.	draw on (someone – кому-либо) оружием); overhang; draw on (кому-либо); brandish threats; draw upon (кому-либо); impend over; make threat; ramp around; stare one in the face; threaten with (чем-либо); use threats
mil., arm.veh.	imperil
nano	threat
slang	lean against; lean on; work over (Interex); crowd (кому-либо); put the screws heat; squeeze on (someone)
vulg.	be on one's ass
угрожающе adj.
gen.	viciously; in a threatening way (theguardian.com Alex_Odeychuk); dangerously; louringly; loweringly; alarmingly (sea holly); forbiddingly (MayLily); menacingly; threateningly; denunciatively

угрожающий: 499 phrases in 59 subjects

Advertising	1
American usage, not spelling	5
Armored vehicles	1
Astronautics	3
Aviation	4
Aviation medicine	4
Banking	1
Biology	5
Business	6
Chess	8
Construction	1
Diplomacy	7
Ecology	3
Economy	3
Education	2
Electronics	1
Energy industry	1
Figurative	2
Finances	1
Food industry	4
Foreign policy	2
General	152
Idiomatic	1
Immunology	1
Informal	1
Information security and data protection	5
Law	13
Law enforcement	1
Makarov	115
Management	1
Maritime law & Law of the Sea	1
Mass media	14
Medical	20
Military	30
Military lingo	1
Nanotechnology	12
Natural resourses and wildlife conservation	1
Nautical	2
Navigation	1
Notarial practice	1
Obsolete / dated	1
Occupational health & safety	2
Oil / petroleum	3
Ophthalmology	1
Pharmacy and pharmacology	1
Politics	12
Programming	2
Proverb	1
Psychiatry	1
Psychology	2
Psychotherapy	1
Rail transport	1
Security systems	11
Slang	13
Technology	3
Tengiz	2
United Nations	1
Vulgar	1
Wood processing	2