1) Dangerous 2) French word used in English 3) Involving great risk 4) Involving risk or danger 5) Like a live wire 6) Risky 7) To be dangerous 8) Unsafe 9) Venturesome 10) Venturous Found on https://www.crosswordclues.com/clue/hazardous
hazardous 1. Potentially very dangerous to living beings or the environment. 2. Marked by danger; perilous. 3. Depending on chance; full of risk; perilous; risky. Found on http://www.wordinfo.info/words/index/info/view_unit/3923/
riskyadjective involving risk or danger; `skydiving is a hazardous sport`; `extremely risky going out in the tide and fog`; `a wild financial scheme` Found on https://www.encyclo.co.uk/local/20974