Word.ws English Dictionary

uncombustible

uncombustible adjective: synonym of incombustible.

Adjective

uncombustible (comparative more uncombustible, superlative most uncombustible)

  1. Synonym of incombustible.
    • You also have trash which is uncombustible, such as bedsprings, cans, and other metal objects?1967, United States. Congress. House. Appropriations, Second Supplemental Appropriation Bill: 1967, Hearings..., page 279
    Synonyms:
    incombustible

Synonyms of uncombustible

Forms of uncombustible

comparativemore uncombustible
superlativemost uncombustible

Origin of uncombustible

From un- + combustible.

Questions about uncombustible

What does uncombustible mean?
Uncombustible means synonym of incombustible.
What part of speech is uncombustible?
Uncombustible is an adjective.

Words near uncombustible in the dictionary

  1. uncombines
  2. uncombing
  3. uncombining
  4. uncombs
  5. uncombusted
  6. uncombustible
  7. uncome
  8. uncomeatable
  9. uncomedic
  10. uncomelier
  11. uncomeliest

Source and license

Adapted from Wiktionary: uncombustible (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “uncombustible.” Word.ws, https://word.ws/uncombustible. Based on Wiktionary, CC BY-SA 4.0.