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hazardous

adjective

ˈhæzədəs

Meaning

Dangerous, risky, or potentially harmful

risky; dangerous; involving potential harm or loss

Involving risk or danger.

Hazardous pollutants increase health risks.

Working with hazardous chemicals requires special training.

The workers wore masks to avoid inhaling hazardous chemicals.

risky, perilous, dangerous, unsafe, harmful

Entry 1

risky, perilous

Entry 2

dangerous, risky, perilous, unsafe

Entry 3

dangerous, risky, unsafe, perilous, harmful

safe, secure, harmless, protected

Entry 1

safe, secure

Entry 2

safe, secure, harmless, protected

Entry 3

safe, secure, harmless

hazardous waste, hazardous materials, hazardous conditions, hazardous chemicals

Entry 2

hazardous waste, hazardous materials, hazardous conditions

Entry 3

hazardous materials, hazardous waste, hazardous conditions, hazardous chemicals

Of or requiring a form of computer control timing protocol in which a specific operation begins upon...

Of great importance or significance, especially in its effect on the future.

awaiting; not yet decided or settled; in the process of being completed

requiring considerable effort and time; difficult and hard-working

Relating to or causing pestilence; very harmful, troublesome, or dangerous.

peaceful; inclined to avoid conflict