1. Filled with vapour
   - miasmic, vaporous, vapourous [Brit, non-standard], vapory [US], vapoury [Brit, Cdn]

See also: cloudy, miasma

• unboundedness
• unbowed
• unbox
• unbrace
• unbraced
• unbraid
• unbrainwashed
• unbranched
• unbranching
• unbranded
• unbreakable
• unbreakableness
• unbridgeable
• unbridle
• unbridled
• unbroken
• unbrushed
• unbuckle
• unbundle
• unburden
• unburdened
• unburied
• unburned
• unburnished
• unburnt