Definition of flammable in English:


See synonyms for flammable

Translate flammable into Spanish


  • Easily set on fire.

    ‘the use of highly flammable materials’
    • ‘Kerosene is volatile, flammable and leaks very easily from containers.’
    • ‘It's believed one of the fires was started using paraffin and other flammable materials stored in the shed.’
    • ‘Whatever we did, we always did it with a bottle of something flammable, fires made a good end to the day.’
    • ‘A process might be hazardous if it involves flammable or combustible materials.’
    • ‘Standing or fallen dry weeds can be highly flammable fire hazards in late fall, winter and early spring.’
    • ‘Small fires had been feeding upon flammable materials, but they were not large enough to turn on the sprinkler system.’
    • ‘It is also a time to turf out unwanted, though preferably easily flammable, things from around the house and to chuck them onto the bonfire.’
    • ‘Assemble all the really flammable material you can find, and build the smallest fire you can.’
    • ‘The bonfire will last only as long as supply of cards, flowers and other flammable material is available, so get there early!’
    • ‘The incidents happened just hours after the fire brigade helped residents clear up the estate in the hope of removing flammable materials.’
    • ‘Against common sense and regulations, the interiors of the cars were built with flammable materials.’
    • ‘He said such incidents are common because of the flammable materials involved in the construction of thatched cottages.’
    • ‘In some places, a smoking ban is justified for safety reasons such as in confined spaces or where flammable material is present.’
    • ‘As you well know, there are some kinds of this material that are highly flammable.’
    • ‘On one occasion, an emergency route was blocked with flammable materials and on another, an exit was blocked by cars.’
    • ‘Fire chiefs are now warning homeowners not to leave lighted candles unattended and close to flammable materials.’
    • ‘Any warehouse or factory holding stocks of flammable material needs to be relocated to an industrial estate.’
    • ‘It is thought to have been started with flammable material which caused an explosion damaging three windows.’
    • ‘This is because polystyrene is a flammable material that gives off a toxic black smoke in the event of a fire.’
    • ‘It is a highly flammable and unstable compound, with a life of between thirty and eighty years.’
    inflammable, burnable, combustible, incendiary, unstable
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/ˈflaməb(ə)l/ /ˈflæməb(ə)l/


The words flammable and inflammable mean the same thing, but flammable is preferred to avoid confusion: see inflammable


Early 19th century from Latin flammare, from flamma ‘a flame’.