windowless

Lacking any glazing

Windowless describes a space or structure without windows: a windowless basement, a windowless van.

The word often carries claustrophobic or oppressive connotations—windowless rooms feel confining, cut off from natural light and the outside world.

She worked in a windowless office for years.

enclosed

claustrophobic

Fearing confined spaces

airless · stifling · stuffy · suffocating · boxed-in · entombed · shut-in · closeted · tomblike · oppressive

dark

unlit

Not burning or glowing

murky · pitch-black · blackout · lightless · sunless · underground · subterranean · cavelike

architecture

bunker

Reinforced subterranean stronghold

brutalist · concrete · monolithic · facade · precast · cladding · blocky · institutional · corporate · tower

security

vault

Secure storage chamber

protected · shielded · impenetrable · surveillance · restricted · hardened · reinforced · stronghold · armored · classified

privacy

secluded

Set apart, private

unseen · discreet · intimate · confidential · restricted · cloistered · screened · private · sequestered · anonymous

Categories
Opposites
presence of windows

windowlesswindowed

Having glass openings

fenestrated · glazed · floor-to-ceiling windows · skylit · panoramic

light and openness

windowlesssunlit

Lit by daylight

light-filled · sun-drenched · airy · bright · open

Phrases
Family

windowlessness

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G