dangerous
[adjective]
Synonyms: perilous, breakneck, chancy (informal), hazardous, insecure, precarious, risky, unsafe, vulnerable

---

Antonyms: safe, secure
Contrasted words: certain, reliable, harmless, innocent
Related Idioms: beset (or fraught) with danger, on a collision course
Related Words: insecure, precarious, uncertain, unsafe, chance, haphazard, hit-or-miss, random, critical, menacing, serious, threatening

---

English Thesaurus: dangerous, risky, hazardous, unsafe, treacherous, ...

[TahlilGaran] English Synonym Dictionary ▲

dan‧ger‧ous S2 W2 /ˈdeɪndʒərəs/ adjective
[Word Family: adjective: endangered, dangerous; verb: endanger; noun: danger; adverb: dangerously]

1. able or likely to harm or kill you ⇒ harmful:
laws about dangerous dogs
Some of these prisoners are extremely dangerous.
highly/very dangerous
it was a highly dangerous situation.
dangerous for
The crumbling sidewalks are dangerous for old people.
dangerous to
The virus is probably not dangerous to humans.
it is dangerous for somebody to do something
It’s dangerous for a woman to walk alone at night.
The powdered milk was not as good as breast milk, and was downright dangerous (=actually dangerous) when it was mixed with unclean water.

2. involving a lot of risk, or likely to cause problems Synonym : risky:
The business is in a dangerous financial position.
a politically dangerous strategy

3. dangerous ground/territory a situation or subject that could make someone very angry or upset:
Teachers can be on dangerous ground if they discuss religion.
—dangerously adverb:
people who drive dangerously

[TahlilGaran] Dictionary of Contemporary English ▲

dangerous
adj.
VERBS be, look, prove, seem, sound | become, get The situation could get quite dangerous.
remain | make sth The ice is making the roads very dangerous tonight.
consider sth, regard sth as
ADV. bloody (taboo), exceedingly, extremely, highly, incredibly, really, terribly, very a highly dangerous situation
increasingly | a bit, a little, quite, rather, slightly | possibly, potentially | downright, positively It's a risky idea, if not downright dangerous!
inherently | notoriously This route through the mountains is notoriously dangerous.
politically Raising income tax is considered politically dangerous.
PREP. for This treatment is extremely dangerous for the mother.
to not dangerous to humans

[TahlilGaran] Collocations Dictionary ▲

dangerous likely to cause death or serious harm, or cause something bad to happen:
Snow and ice are making driving conditions very dangerous.
dangerous drugs
a dangerous criminal
risky if something is risky, something bad could easily happen or you could easily make a mistake:
Doctors said it was too risky to operate.
a risky situation
hazardous /ˈhæzədəs $ -zər-/ especially written dangerous – used especially about substances, jobs, and journeys:
hazardous waste
hazardous chemicals
hazardous occupations
The expedition was extremely hazardous.
unsafe dangerous because someone is very likely to be hurt – used especially about places or conditions:
The roads are unsafe for cyclists.
unsafe working conditions
treacherous /ˈtretʃərəs/ formal literary places or conditions that are treacherous are very dangerous for anyone who is walking, driving, climbing etc in them:
The snow turned to ice, making conditions treacherous for walkers.
the island’s treacherous coastline
With no lighting, the roads can be treacherous.
perilous /ˈperələs, ˈperɪləs/ literary a perilous journey, situation etc is very dangerous:
a perilous journey across the sea
high-risk [only before noun] a high-risk job, situation, or behaviour is likely to be dangerous:
Drug users need to know that sharing needles is high-risk behaviour.

[TahlilGaran] English Thesaurus ▲

dangerous
ˈdeɪndʒrəs
See: a little knowledge is a dangerous thing

[TahlilGaran] English Idioms Dictionary ▲