nonventilated
Lacking fresh air
Nonventilated describes a space or enclosure lacking airflow or circulation.
A nonventilated room has no windows, fans, or ducts to move air.
The term appears in technical contexts—building codes, equipment specifications, safety warnings: Do not use in nonventilated areas.
The opposite is ventilated.
Depriving of air
- unbreathableCannot be inhaled safely
- asphyxiatingCausing death by airlessness
- anaerobicNot requiring oxygen
- hermeticImpenetrably closed off
sealed · airtight · vacuum · void · enclosed · confined · breathless · stifling
Unpleasantly warm and humid
- humidContaining much moisture
- closeNearby or to shut
- oppressiveUnjustly harsh or stifling
- claustrophobicFearing confined spaces
sweltering · overheated · fuggy · sultry · thick · heavy · uncomfortable · smothering
No longer fresh
- motionlessLacking all movement
- stillUnmoving, or continuing
- staticWithout motion or change
- uncirculatedNever entered commerce
undisturbed · dead air · unchanged · unstirred · unrefreshed · foul · fetid · musty
Closed to prevent entry
- airtightImpervious to atmosphere
- impermeableCannot be penetrated
- watertightPrevents liquid from passing
- insulatedShielded from heat loss
hermetic · windowless · unopen · confined · compartmentalized · isolated · contained · closed-off
suffocating
Depriving of air
- unbreathableCannot be inhaled safely
- asphyxiatingCausing death by airlessness
- anaerobicNot requiring oxygen
hermetic · sealed · airtight · vacuum · void · enclosed · confined · breathless · stifling · airproof
muggy
Unpleasantly warm and humid
- humidContaining much moisture
- closeNearby or to shut
- oppressiveUnjustly harsh or stifling
claustrophobic · sweltering · overheated · fuggy · sultry · thick · heavy · uncomfortable · smothering · stifling
stale
No longer fresh
- motionlessLacking all movement
- stillUnmoving, or continuing
- staticWithout motion or change
uncirculated · undisturbed · dead air · unchanged · unstirred · unrefreshed · foul · fetid · musty · uncleared
sealed
Closed to prevent entry
- airtightImpervious to atmosphere
- impermeableCannot be penetrated
- watertightPrevents liquid from passing
insulated · hermetic · windowless · unopen · confined · compartmentalized · isolated · contained · closed-off · unpierced
ventilate, ventilated, ventilating, ventilation, ventilator, ventilators, unventilated, vent, vents