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unburnable

unburnable

1 4.7
Not able to burn or be set on fire
  • adjective
  • /ʌnˈbɜrnəbl/
: incombustible

Examples

  • Unburnable mushrooms are others.

    Blog text (19)
  • "He showed them how to prep the firebed, removing all unburnable 'clinkers,' he called them; how to separate the 'coke' from the 'green' coal.

    Fiction book (2001)
  • The firefighters used materials that were unburnable to build a safer structure in the area prone to wildfires.

  • This unburnable insulation helps to keep the building safe in case of a fire.

  • These bricks are unburnable, making them ideal for constructing the furnace.

Synonyms

fireproof
vsunburnable
10 4.0

Made so it does not burn in a fire

refers to inability or unsuitability to be burned rather than resistance
nonflammable
vsunburnable
1 4.1

Does not catch fire or burn easily

means unsuitable to be burned rather than just low flammability
noncombustible
vsunburnable
1 5.3

Does not catch fire or burn

focuses on being unsuitable or unable to be burned
incombustible
vsunburnable
1 8.2

Not able to catch fire or burn

describes unsuitability for burning rather than damage resistance

How Burnable

ignitable
  • Specialized
1 5.6
combustible
17 5.1
unburnable
1 4.7
fire-resistant
  • Specialized
4 4.1

Surface Forms

unburnable positive

Morphology

unburnable = burnable (transparent) = un + burn + able

Formed by prefixing un- to the adjective 'burnable' (burn + -able), producing the straightforward negation 'not able to be burned'.

Etymology

The word unburnable is made of un- 'not', burn 'to be on fire', and -able 'can'. So it literally means 'not able to burn', which is why we use it for materials that will not catch fire.