incombustible

[ in-kuhm-buhs-tuh-buhl ]
See synonyms for incombustible on Thesaurus.com
adjective
  1. not combustible; incapable of being burned; fireproof.

noun
  1. an incombustible substance.

Origin of incombustible

1
First recorded in 1425–75; late Middle English word from Medieval Latin word incombustibilis.See in-3, combustible

Other words from incombustible

  • in·com·bus·ti·bil·i·ty, in·com·bus·ti·ble·ness, noun
  • in·com·bus·ti·bly, adverb

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

British Dictionary definitions for incombustible

incombustible

/ (ˌɪnkəmˈbʌstəbəl) /


adjective
  1. not capable of being burnt; fireproof

noun
  1. an incombustible object or material

Derived forms of incombustible

  • incombustibility or incombustibleness, noun
  • incombustibly, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012