1. (a.) Having the form or nature of vapor.

2. (a.) Full of vapors or exhalations.

3. (a.) Producing vapors; hence, windy; flatulent.

4. (a.) Unreal; unsubstantial; vain; whimsical.

adulterated aerial aerodynamic aerostatic aery air-built airy attenuate attenuated chimeric chimerical cloud-born cloud-built cloud-woven cloudy cut dilute diluted dreamlike ethereal fanciful fatuitous fatuous fine flimsy foggy fuming fumy gaseous gasified gasiform gaslike gassy gossamery illusory imaginary insubstantial mephitic miasmal miasmatic miasmic misty mushy oxyacetylene oxygenous ozonic phantasmal phantomlike pneumatic rare rarefied reeking reeky shadowy slight smoking smoky spirituous steaming steamy subtile subtle tenuous thin thinned thinned-out uncompact uncompressed unreal unsubstantial vague vaporing vaporish vaporlike vapory watered watered-down windy wispy