• Admitting air currents
• Exposed to the wind
• Hardly airtight
• Having open windows, maybe
• Like an overventilated room
• Like an uninsulated room
• Like some attics
• Needing caulking
• Not airtight
• Not insulated
• Not keeping out the wind
• Not stifling
• Not well insulated
• Poorly insulated
• Poorly insulated, maybe
• Poorly insulated, perhaps
• Prompting shivers
• Windy, in a way