noncombustible
/ˌnɑnkəmˈbʌstəbəl/
adjective
- Not able to catch fire or burn.
- Always store noncombustible items away from flammable liquids.
- The fire inspector checked that all insulation was noncombustible.
- The building's walls are made of noncombustible materials like concrete and steel.
Antonyms
noun
- A substance or material that does not burn.
- The safety manual lists common noncombustibles found in offices.
- The factory separates combustibles from noncombustibles before disposal.
- Noncombustibles such as glass and metal can be recycled safely.