Technically, I think they’re different. Flammable means that it can be lit on fire, like wood or something. Whereas inflammable means it can catch fire on its own, like gas, for example.
saying that “gas” is able to catch fire on its own is stretching it :) A gas mix typically still needs a spark, unlike: https://en.wikipedia.org/wiki/Hypergolic_propellant <- that stuff can “catch fire” on its own. But even there - it needs to be mixed, so technically, one component requires the other to ignite.
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Technically, I think they’re different. Flammable means that it can be lit on fire, like wood or something. Whereas inflammable means it can catch fire on its own, like gas, for example.
Synonyms, true synonyms. No real difference between them (except don’t use inflammable in safety situations, for above reasons)
saying that “gas” is able to catch fire on its own is stretching it :) A gas mix typically still needs a spark, unlike: https://en.wikipedia.org/wiki/Hypergolic_propellant <- that stuff can “catch fire” on its own. But even there - it needs to be mixed, so technically, one component requires the other to ignite.
Yeah, my bad, shit example.
Credit to you for the self-correction though