hazardous

Language: en

🇬🇧 /ˈhæzədəs/ 🇺🇸 /ˈhæzɜrdəs/

📖 Definitions

  1. adjective
    Involving risk or danger; dangerous to health, safety, or well-being.; Relating to or involving a risk of loss or damage, especially in the context of insurance or financial ventures.; Designating waste, materials, or substances that are potentially harmful to human health or the environment.; Uncertain; depending on chance or contingency.

🔗 Details

Word forms

Comparative: more hazardous Superlative: most hazardous

Collocations

hazardous materialshazardous wastehazardous conditionshazardous chemicalshazardous to healthhazardous substances

Derivatives

hazardhazardouslyhazardousnessnonhazardous

Synonyms

dangerousperilousriskyunsafetreacherousthreatening

Antonyms

safeharmlesssecure

Commonly confused

hazard
EN: 'Hazard' is the noun (the danger itself) or verb (to risk); 'hazardous' is the adjective describing something as dangerous.
arduous
EN: 'Arduous' means difficult and exhausting (effort-related); 'hazardous' means dangerous (risk-related).

Spelling tips

EN: Remember 'hazardous' is spelled with a 'z' (not 's'), derived from 'hazard' + '-ous'. Do not confuse with 'hazardless' (which is not standard; use 'nonhazardous' instead).

💬 Examples

  1. The workers were exposed to hazardous chemicals without proper protective equipment.

  2. The insurance company classified the coastal property as a hazardous investment due to the frequent hurricanes.

  3. The factory was fined for improperly disposing of hazardous waste into the river.

  4. The outcome of the expedition remained hazardous until the very last moment.