hazardous

adjective haz·ard·ous \ ˈha-zər-dəs \
Updated on: 12 Nov 2017

Definition of hazardous

1 : depending on the effect of unpredictable and unanalyzable forces in determining events : depending on hazard (see 1hazard 3a) or chance
  • hazardous outcomes
2 : involving or exposing one to risk (as of loss or harm)
  • a hazardous occupation
  • disposing of hazardous waste

hazardously

adverb

hazardousness

noun

Examples of hazardous in a Sentence

  1. It was a hazardous voyage.

  2. These are hazardous chemicals that can cause death if inhaled.

Recent Examples of hazardous from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hazardous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of hazardous

Synonym Discussion of hazardous

dangerous, hazardous, precarious, perilous, risky mean bringing or involving the chance of loss or injury. dangerous applies to something that may cause harm or loss unless dealt with carefully.
    • soldiers on a dangerous mission
hazardous implies great and continuous risk of harm or failure.
    • claims that smoking is hazardous to your health
precarious suggests both insecurity and uncertainty.
    • earned a precarious living by gambling
perilous strongly implies the immediacy of danger.
    • perilous mountain roads
risky often applies to a known and accepted danger.
    • shied away from risky investments

HAZARDOUS Defined for English Language Learners

hazardous

adjective

Definition of hazardous for English Language Learners

  • : involving risk or danger


HAZARDOUS Defined for Kids

hazardous

adjective haz·ard·ous \ ˈha-zər-dəs \

Definition of hazardous for Students

: dangerous 1 hazardous chemicals

Law Dictionary

hazardous

adjective haz·ard·ous

legal Definition of hazardous

: creating a hazard : involving or exposing one to risk (as of loss or harm)
  • a hazardous occupation
  • a hazardous substance

hazardously

adverb


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