combustible

com·bus·ti·ble
C3O1M3B3U1S1T1I1B3L1E1
/kəmˈbʌstɪbəl/[kəɱˈbʌstʰɪbəl] ~ [kəɱˈbʌstʰɪbl̩]/kəmˈbʌstəbəl/[kəɱˈbʌstʰəbəl] ~ [kəɱˈbʌstʰəbl̩]

adjective

Capable of burning.

“Dumping fertilizer on top of whatever mysterious goop was in the storage tank created a combustible mix which caught fire.”

Similar
flammableinflammable[contronym]]ic senses>burnableignitableignitiblecomburentcomburantcombustive
Less commonScrabble 19

Meanings

adjectivecombustible (comparative more combustible, superlative most combustible)

comparative more combustible · superlative most combustible

  1. Capable of burning.

    Dumping fertilizer on top of whatever mysterious goop was in the storage tank created a combustible mix which caught fire.

    2 more examples

    Sin is to the soul like fire to combustible matter.

    1692–1717, Robert South, Twelve Sermons Preached upon Several Occasions, volume (please specify |volume=I to VI), London

    The rest were undergoing special underbody cleaning safety checks at TfW depots, after speculation that the cause of the incidents may have been a build-up of engine oil and combustible material such as fallen leaves and general detritus.

    2023 March 22, “Network News: Class 175s withdrawn for safety checks after fires”, in RAIL, number 979, page 13

    Synonyms: flammable, inflammable[contronym]]ic senses> · Antonyms: incombustible, noncombustible, nonflammable, noninflammable, unflammable, inflammable[contronym]]ic senses>, fireproof, refractory

  2. datedfigurativelyEasily kindled or excited; quick; fiery; irascible.

    Arnold, however, was a combustible character.

    1855–1859, Washington Irving, The Life of George Washington
    1 more example

    The world’s richest man has inserted himself in some of the world’s most combustible conflicts.

    2022 October 26, Cade Metz, Adam Satariano, Chang Che, “How Elon Musk Became a Geopolitical Chaos Agent”, in The New York Times, →ISSN

    Antonyms: incombustible, noncombustible, uncombustible

nouncombustible (plural combustibles)

plural combustibles

  1. A material that is capable of burning.

    A wheel, wrapt in combustibles, was kindled and rolled down the hill.

    1890, James George Frazer, The Golden Bough, volume 2, page 248
  2. tobacco industryA cigarette or a similar product intended for smoking, as opposed to an electronic cigarette.

    In total three-quarters of the western Big Tobacco giants' sales last year came from so-called combustibles as vaping sales are plateauing.

    2025 June 14, “Big Tobacco stock rally reveals smokeless future is still a long way off”, in FT Weekend (Lex. section), London: The Financial Times Ltd., →ISSN, →OCLC, page 16

Synonyms & antonyms

adjectiveCapable of burning.

Similar
flammableinflammable[contronym]]ic senses>

adjectiveEasily kindled or excited; quick; fiery; irascible.

More synonyms by meaning

adjectivecapable of igniting and burning

nouna substance that can be burned to provide heat or power

Similar
combustible material
Broader

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Latincombustibilis
  2. Middle Frenchcombustible
  3. Englishcombustible

From Middle French combustible [from combust (past participle of comburir) + -ible] and Latin combustibilis. By surface analysis, combust + -ible.

Full word history & related roots →

Translations

Bulgarian запалим, възпламеним
  • запалим (zapalim)capable of burning
  • възпламеним (văzplamenim)capable of burning
  • горивен материалmaterial capable of burning
Catalan combustible, combustible
  • combustiblecapable of burning
  • combustiblematerial capable of burning
Czech hořlavý
  • hořlavýcapable of burning
Dutch brandbaar
  • brandbaarcapable of burning
Finnish palava, syttyvä
  • palavacapable of burning
  • syttyväcapable of burning
  • syttyvä ainematerial capable of burning
French combustible, combustible
  • combustiblecapable of burning
  • combustiblematerial capable of burning
German brennbar, verbrennbar
  • brennbarcapable of burning
  • verbrennbarcapable of burning
  • Brennstoffmaterial capable of burning
Hungarian gyúlékony
  • gyúlékonycapable of burning
Italian combustibile
  • combustibilecapable of burning
Japanese 可燃性の, 可燃物
  • 可燃性の (kanensei no)capable of burning
  • 可燃物 (kanenbutsu)material capable of burning
Latin combustibilis
  • combustibiliscapable of burning
Norwegian Bokmål brennbar
  • brennbarcapable of burning
Polish palny, łatwopalny
  • palnycapable of burning
  • łatwopalnycapable of burning
  • materiał palnymaterial capable of burning
Portuguese combustível, combustível
  • combustívelcapable of burning
  • combustívelmaterial capable of burning
Romanian combustibil
  • combustibilcapable of burning
Russian воспламеня́емый, воспламеня́ющийся
  • воспламеня́емый (vosplamenjájemyj)capable of burning
  • воспламеня́ющийся (vosplamenjájuščijsja)capable of burning
  • горючий (gorjučij)capable of burning
  • то́пливо (tóplivo)material capable of burning
Spanish combustible, combustible
  • combustiblecapable of burning
  • combustiblematerial capable of burning
Swedish brännbar
  • brännbarcapable of burning
Tagalog maliyab, liyabin
  • maliyabcapable of burning
  • liyabinmaterial capable of burning
Turkish yanıcı, yanıcı
  • yanıcıcapable of burning
  • yanıcımaterial capable of burning
Cite this entry
APA

combustible. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/combustible

MLA

“combustible.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/combustible. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “combustible,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/combustible.

Source: combustible on Wiktionary, CC BY-SA 4.0.