Word.ws English Dictionary

Synonyms of dangerous

12 similar words · 3 opposite words

Another word for dangerous is risky. Other synonyms of dangerous are hazardous, unsafe, perilous, parlous and forbidding. The opposite of dangerous is safe.

Synonyms and similar words for dangerous

adjectiveFull of danger.

  • hazardousRisky; dangerous; with the nature of a hazard.
  • perilousDangerous, full of peril.
  • riskyDangerous; involving risks.
  • unsafeNot safe (various senses); dangerous.

adjectiveMore synonyms

  • dangersomeCharacterised or marked by danger; dangerous.
  • hot informalUncomfortable, difficult to deal with; awkward, dangerous, unpleasant.
  • jeopardousMarked by jeopardy; dangerous or perilous.
  • wicked
  • forbiddingAppearing to be threatening, unfriendly or potentially unpleasant.
  • parlousAttended with peril; dangerous, risky.
  • periculousDangerous, hazardous, perilous.
  • precarious

Opposite of dangerous

adjectiveFull of danger.

  • safeFree from risk.

adjectiveMore antonyms

Meaning of dangerous

  1. adjective Full of danger.
  2. adjective Causing danger; ready to do harm or injury.
  3. adjective In a condition of danger, as from illness; threatened with death.

Full definition of dangerous

dangerous in other languages

Questions about synonyms of dangerous

What is another word for dangerous?
Dangerous has 12 synonyms on Word.ws, such as risky, hazardous, unsafe, perilous, parlous and forbidding.
What is the opposite of dangerous?
The opposite of dangerous is safe.
What does dangerous mean?
Dangerous means full of danger.

Source and license

Adapted from Wiktionary: dangerous (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.

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Cite this page: “Synonyms of dangerous.” Word.ws, https://word.ws/synonyms/dangerous. Based on Wiktionary, CC BY-SA 4.0.