vaporous

/ˈveɪpərəs/
adjective
  1. Consisting of or resembling vapor; full of vapor; misty or hazy.
    • The scientist studied the vaporous substance released by the chemical reaction.
    • A vaporous haze hung over the city after the rain stopped.
    • The vaporous clouds drifted slowly across the mountain peaks.
  2. Vague, insubstantial, or lacking clear form or substance.
    • His vaporous promises never turned into real action.
    • The plan was still vaporous, with no concrete details.
    • She dismissed his vaporous excuses as meaningless.
Antonyms