adj

gaseous

GEH-ee-see-uhs

Gaseous (adj) means existing in the form of a gas. Example: “Water becomes gaseous when it boils into steam.”

adj

Existing in the form of a gas.

"Water becomes gaseous when it boils into steam."

"The tank stores hydrogen in its gaseous form."

How to use gaseous

Learner’s notes

In plain EnglishDescribes something that exists as a gas rather than a liquid or solid.

Common pairings

gaseous state gaseous form gaseous mixture

more gaseous comparative, most gaseous superlative

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Can you complete this real example?

Water becomes _____ when it boils into steam.

From "gas" plus the adjective ending "-eous."

aeriform aereous aerial airy ethereal vaporlike pneumatic vaporous wafty

nongaseous fluidic solid

good hard gas active flying solid soft substantial

yous nous pious joyous heinous ominous curious anxious copious tenuous tedious spurious

What does “gaseous” mean?

The word “gaseous” means existing in the form of a gas. In plain terms, describes something that exists as a gas rather than a liquid or solid.

How do you pronounce “gaseous”?

“Gaseous” is pronounced GEH-ee-see-uhs (/ˈɡæsiəs/ in IPA).

How do you use “gaseous” in a sentence?

Here is “gaseous” used in a sentence: “Water becomes gaseous when it boils into steam.”

What is another word for “gaseous”?

Words with a similar meaning to “gaseous” include aeriform, aereous, aerial, airy, ethereal and vaporlike.

What is the opposite of “gaseous”?

The opposite of “gaseous” — its antonyms — are nongaseous, fluidic and solid.

What part of speech is “gaseous”?

“Gaseous” is an adjective.

good hard gas active flying solid soft substantial