Dictionary.com
definitions

inflammable

[ in-flam-uh-buhl ]
/ ɪnˈflæm ə bəl /
||
SEE MORE SYNONYMS FOR inflammable ON THESAURUS.COM

adjective

capable of being set on fire; combustible; flammable.
easily aroused or excited, as to passion or anger; irascible: an inflammable disposition.

noun

something inflammable.

RELATED CONTENT

Why Do “Flammable” And “Inflammable” Mean The Same Thing?English is a trickster of a language, evidenced by the fact that two words that appear to be antonyms can actually mean the exact same thing. For the most part we manage to bumble along without confusing the two, and can figure out which meaning is intended based on context (although in the case of regardless and irregardless some extra time is needed for teeth-gnashing). …
READ MORE

RELATED WORDS

combustible, dangerous, flammable, hazardous, incendiary, risky, unsafe, burnable, ignitable

Nearby words

  1. infix,
  2. infixion,
  3. infl.,
  4. inflame,
  5. inflamed,
  6. inflammation,
  7. inflammatory,
  8. inflammatory bowel disease,
  9. inflammatory carcinoma,
  10. inflammatory lymph

Origin of inflammable

1595–1605; < Medieval Latin inflammābilis, equivalent to Latin inflammā(re) to inflame + -bilis -ble
Related forms
Can be confusedinflammable inflammatory

Usage note

Inflammable and flammable both mean “combustible.” Inflammable is the older by about 200 years. Flammable now has certain technical uses, particularly as a warning on vehicles carrying combustible materials, because of a belief that some might interpret the intensive prefix in- of inflammable as a negative prefix and thus think the word means “noncombustible.” Inflammable is the word more usually used in nontechnical and figurative contexts: The speaker ignited the inflammable emotions of the crowd.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for inflammable

British Dictionary definitions for inflammable

inflammable

/ (ɪnˈflæməbəl) /

adjective

liable to catch fire; flammable
readily aroused to anger or passion

noun

something that is liable to catch fire
Derived Formsinflammability or inflammableness, nouninflammably, adverb

xref

See flammable
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
Word Origin and History for inflammable

inflammable

adj.

early 15c., in medicine, "liable to inflammation," from Middle French inflammable and directly from Medieval Latin inflammabilis, from Latin inflammare (see inflame). As "able to be set alight," c.1600. Related: Inflammability.

Online Etymology Dictionary, © 2010 Douglas Harper