This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Producing or turning to vapor.

adj. Having the nature of vapor; vaporous.

adj. Producing vapour; tending to pass, or to cause to pass, into vapor.

adj. Producing vapor; tending to pass, or to cause to pass, into vapor.

That converts or is capable of converting into steam or other vapor; exhaling in a volatile form, as fluids.

adj. resembling or characteristic of vapor

adj. (used of substances) capable of being volatilized

"The knock on modern poetry is that at best it's willfully obscure, at worst a con job - insulting, vaporific nonsense for intellectual poseurs who should just face facts: There never will be a poem as lovely as a tree."

gaseous    volatile