From Longman Dictionary of Contemporary Englishflammableflam‧ma‧ble /ˈflæməbəl/ adjective BURNsomething that is flammable burns easily → inflammable, nonflammable Caution! Highly flammable liquid.
Examples from the Corpus
flammable• Lower oxygen would be anemic, while greater oxygen would be too flammable.• He felt as flammable as old newsprint.• Caution! Highly flammable chemicals.• Hydrogen is a highly flammable gas.• There was flammable goo all over the place.• Wooden-framed furniture is best, then at least you can change the cushions for less flammable material.• The use, storage, and transportation of poisonous, explosive, or flammable substances have long been regulated.• Many packaging materials contain highly flammable substances that could make a fire suddenly flare up.Origin flammable (1800-1900) Latin flammare “to set on fire” 