unburnable Synonyms

Strongest:

No Weak antonyms found.

incapable of being burned or unsuitable for burning

The ancient scrolls were unburnable, defying the test of time.
The phoenix's feathers were unburnable, regenerating after each fiery demise.
The diamond's atomic structure rendered it unburnable, making it the hardest natural substance.
Scientists puzzled over the unburnable material, which defied all known laws of combustion.
The vault's walls were coated with an unburnable material, safeguarding its contents from potential infernos.
The unburnable fabric protected firefighters from the intense heat of blazing buildings.
The nuclear waste was sealed in unburnable containers, preventing contamination from escaping.
The army's research focused on developing unburnable uniforms for soldiers operating in high-risk environments.
The unburnable tree stood as a testament to the power of ancient nature, unyielding against fire.
The alchemist's unburnable elixir was rumored to grant eternal life, but its whereabouts remained a mystery.

incapable of being burned or unsuitable for burning

nonflammable, noninflammable, noncombustible, fireproof,incombustible,nonburnable,nonexplosive

combustible, fiery, burnable,flammable, inflammable, incendiary, explosive, combustive, ignitible, ignitable

The ancient scrolls were unburnable, defying the test of time.

The phoenix's feathers were unburnable, regenerating after each fiery demise.

The diamond's atomic structure rendered it unburnable, making it the hardest natural substance.

Scientists puzzled over the unburnable material, which defied all known laws of combustion.