EN

Synonyms for hazardous

Most common

dangerous risky unsafe perilous high-wire

All synonyms

Adjective

1. Dangerous — risky; dangerous; with the nature of a hazard

dangerous, unsafe, risky, perilous, treacherous, adventurous, precarious, uncertain, dicey, wild, insecure, parlous, venturesome formal dated

Other

high-wire

Antonyms

safe, non-hazardous, nonhazardous

All antonyms of hazardous →

Definitions

  1. adj. 1

    Risky; dangerous; with the nature of a hazard.

Related words

Word family
hazardously hazmat hazardousness
Phrases
hazardous material

Example sentences

  • dangerous You shouldn't have gone to such a dangerous place.
  • risky It would probably be risky to do that by yourself.
  • unsafe Do you really think it would be unsafe to do that?
  • perilous A secret cove was hidden by perilous-looking rocks.

Popularity over time

Word1850 → 2019Trend
hazardoussteady
dangeroussteady
riskyrising
unsafesteady
perilousrising

Use in printed books, per decade from 1850 to 2019.

By length

4 letters
wild1
5 letters
risky2, dicey2
6 letters
unsafe2
7 letters
parlous
8 letters
insecure3, perilous3
9 letters
dangerous3, uncertain3
10 letters
precarious4
11 letters
adventurous4, treacherous3, venturesome3

The small number after each word is its number of syllables (risky2 = 2 syllables).

In other languages

Français
hasardeux
Español
azaroso
Deutsch
waghalsig
Català
atzarós