Use 'vaporous' to describe something with a visible but lightweight or diffuse presence, like steam or fog. The hills were shrouded in a vaporous haze that morning.
Pro Tip 2/3
Ethereal Quality
Use 'vaporous' when something has an ethereal or ghostly quality, giving an impression of mystery or elusiveness. The ghost appeared in a vaporous form, barely visible to the naked eye.
Pro Tip 3/3
Describing Aromas
Describe scents that seem light and diffuse through the air as 'vaporous' to emphasize their subtlety. The room was filled with a vaporous scent of jasmine.