[ vey-per-uh s ]
/ ˈveɪ pər əs /


having the form or characteristics of vapor: a vaporous cloud.
full of or abounding in vapor; foggy; misty: a vaporous twilight.
producing or giving off vapor: a vaporous bog.
dimmed or obscured with vapor: a low valley surrounded by vaporous mountains.
unsubstantial; diaphanous; airy: vaporous fabrics; vaporous breezes.
vaguely formed, fanciful, or unreliable: vaporous promises.

Origin of vaporous

First recorded in 1520–30; vapor + -ous

OTHER WORDS FROM vaporous Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for vaporous

British Dictionary definitions for vaporous

/ (ˈveɪpərəs) /


resembling or full of vapour
another word for vaporific
lacking permanence or substance; ephemeral or fanciful
given to foolish imaginings
dulled or obscured by an atmosphere of vapour

Derived forms of vaporous

vaporously, adverbvaporousness or vaporosity (ˌveɪpəˈrɒsɪtɪ), noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012