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dangerous

/ˈdeɪn.d͡ʒ(ə.)ɹəs/adjective3 syllables

Dangerous means: involving or causing danger or risk; liable to hurt or harm.

Synonyms for dangerous33

adjective, as in involving or causing danger or risk; liable to hurt or harm

unsafe, breakneck, chancy, chanceful, dicey, dodgy, desperate, hazardous, risky, wild, insidious, mordacious, on the hook, parlous
and 9 more, perilous, precarious, touch-and-go, self-destructive, suicidal, treacherous, unreliable, insecure, vulnerable

adjective, as in causing fear or anxiety by threatening great harm

grave, grievous, serious, severe, life-threatening, critical

also used for dangerous

dangersome, jeopardous, wicked, periculous

Includes material from Wiktionary, CC BY-SA 4.0.

Opposites of dangerous

safe

What does dangerous mean?2

adjective

1

involving or causing danger or risk; liable to hurt or harm“a dangerous criminal”

2

causing fear or anxiety by threatening great harm“a dangerous operation”

Definitions from the Open English WordNet, CC BY 4.0.

Dangerous in a sentence

  • According to an expert, neither mountaineering nor skiing is dangerous.CM
  • If planes are dangerous, cars are much more so.unknown
  • If it gets dangerous, give me a call.CK
  • It's a very dangerous sport, where a slight mistake can lead to serious injury.CK
  • Nuclear power plants are dangerous, not to mention nuclear weapons.auxitt
  • Packed into wooden fishing boats like sardines, the immigrants undergo the dangerous voyage there.fcbond
  • In real combat, you must not forget that hesitation is a very dangerous thing.FeuDRenais
  • This tool, if used carelessly, can be very dangerous.papabear

Sentences from Tatoeba, CC BY 2.0 FR, credited to their authors.