noun
- materials or substances that cannot be burned or are extremely resistant to burning
adjective
- unable to be burned; not capable of combustion
Examples
- Asbestos was once widely used because it was considered an incombustible material.
- The building code requires incombustibles in all structural components.
- Glass and metal are incombustibles commonly used in fire-safe construction.
- The factory stored incombustibles separately from flammable chemicals.
- Modern insulation often uses incombustible fibers to meet safety standards.
- Ceramic tiles are incombustibles that can withstand extreme heat.