Hazardous
Full of danger; involving risk of harm or damage; not safe to handle without precautions.
adjectiveHazardous
Full of danger; involving risk of harm or damage; not safe to handle without precautions.
adjectiveImagine This
Imagine a lab worker labeling several chemical containers with large red stickers that read 'Hazardous,' requiring gloves, goggles, and a vented cabinet before anyone can approach.
Sounds Like
HAZ-ər-dəs
Looks Like
resembles the noun 'hazard' with the adjectival suffix '-ous'
Remember This
Hazardous describes materials or situations that pose a regulatory or serious safety risk. It is common in safety labels (eg, 'hazardous waste') and formal safety language.
Other Forms
Connect With
danger, risk, safety, precaution, peril, unsafe
Note
Use hazardous with nouns (hazardous chemicals, hazardous materials, hazardous conditions). Do not use as a verb; the adverb form is hazardously.