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in·flam·ma·ble  (n-flm-bl)
1. Easily ignited and capable of burning rapidly; flammable. See Usage Note at flammable.
2. Quickly or easily aroused to strong emotion; excitable.

[Middle English, liable to inflammation, from Medieval Latin nflammbilis, from Latin nflammre, to inflame; see inflame.]

in·flamma·bili·ty n.
in·flamma·ble n.
in·flamma·bly adv.

inflammable (ɪnˈflæməbəl)
1. liable to catch fire; flammable
2. readily aroused to anger or passion
3. something that is liable to catch fire
inˌflammaˈbility inˈflammableness n inˈflammably adv
Usage: See at flammable

in•flam•ma•ble (ɪnˈflæm ə bəl)

1. capable of being set on fire; combustible; flammable.
2. easily aroused to passion or anger.
3. something inflammable.
[1595–1605; < Medieval Latin]
in•flam`ma•bil′i•ty, in•flam′ma•ble•ness, n.
in•flam′ma•bly, adv.
usage: 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 usu. used in nontechnical and figurative contexts: inflammable clothing; an inflammable temper.


Both flammable and inflammable are used to describe materials or chemicals that burn easily.

A window had been smashed and flammable liquid poured in.
...commercial centres, holding large stocks of inflammable materials.

Be Careful!
Inflammable is not the opposite of flammable. The opposite is non-flammable.

The fuel is recyclable, clean and non-flammable.
Thesaurus Legend:  Synonyms Related Words Antonyms
Adj.1.inflammable - easily ignited
combustible - capable of igniting and burning

adjective flammable, explosive, volatile, incendiary, combustible A highly inflammable liquid escaped into the equipment. see flammable
inflammable [ɪnˈflæməbl] ADJ
1. [liquid, substance, fabric] → inflamable
"highly inflammable"muy inflamable
2. (fig) [situation] → explosivo

inflammable [ɪnˈflæməbəl] adj (British)inflammable

adj (lit)feuergefährlich, (leicht) entzündbar; fabricleicht entflammbar; (fig) temperamentexplosiv, leicht reizbar; situationbrisant, gereizt; “highly inflammableVorsicht Feuergefahr“, „feuergefährlich“

inflammable [ɪnˈflæməbl] adj (substance, fabric) → infiammabile (fig) (situation) → esplosivo/a

inflammable (inˈflӕməbl) adjective
easily set on fire. Paper is highly inflammable.
inˌflammaˈbility noun
inflammation (infləˈmeiʃən) noun
(a place in the body where there is) development of heat with pain, redness and swelling. Tonsillitis is inflammation of the tonsils.
inflammable means the same as flammable:
a highly inflammable gas.

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"Yes, please do," answered the general, and he repeated the order that had already once been given in detail: "and tell the hussars that they are to cross last and to fire the bridge as I ordered; and the inflammable material on the bridge must be reinspected.
As the flames gained headway it became apparent to Tarzan that whatever had caused the explosion had scattered some highly inflammable substance upon the surrounding woodwork, for the water which they poured in from the pump seemed rather to spread than to extinguish the blaze.
Nicholl had thought, not perhaps without reason, that the handling of such formidable quantities of pyroxyle would, in all probability, involve a grave catastrophe; and at any rate, that this immense mass of eminently inflammable matter would inevitably ignite when submitted to the pressure of the projectile.
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