What context can I use each word in?
Learn when and how to use these words with these examples!
flammable
Example
The gasoline in the tank is highly flammable. [flammable: adjective]
Example
Please keep all flammable materials away from the open flame. [flammable: noun]
inflammable
Example
The cleaning solution is inflammable, so be careful when using it near an open flame. [inflammable: adjective]
Example
The storage room contains many inflammable materials that need to be handled with care. [inflammable: noun]
Good things to know
Which word is more common?
Flammable and inflammable are equally common and interchangeable in most contexts, except for some regional differences in usage.
What’s the difference in the tone of formality between flammable and inflammable?
Flammable is generally considered more formal than inflammable, but both words can be used in formal and informal contexts depending on the situation.
