- The definition of hazardous is something dangerous or risky.
Behavior that could result in you getting hurt is an example of hazardous behavior.
hazardous definition by Webster's New World
- of or involving chance
- risky; dangerous; perilous
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- hazardously adverb
hazardous definition by American Heritage Dictionary
- Marked by danger; perilous.
- Depending on chance; risky.
- hazˈard·ous·ly adverb
- hazˈard·ous·ness noun