windowless

American  

[win-doh-lis] / ˈwɪn doʊ lɪs /

adjective

1. not furnished with any windows; lacking any view of or ventilation from the outside.

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Example Sentences

Rather than sit in a grand office with big windows overlooking the beautiful Bay of Ajaccio, the club president worked in a windowless, concrete bunker deep inside the building.

From BBC

The Bellagio’s grand ballroom felt much like its casino—ornate, windowless, sour with old cigarette smoke.

From Slate

Yet, in the home that he and Allen built together, the pink primary suite was windowless, creating the impression of a cozy cave in stark contrast with his former dwelling.

From MarketWatch

Its setup includes a powerful windowless gaseous tritium source, a high-resolution spectrometer that precisely measures electron energies, and a detector that records the particles.

From Science Daily

The firm moved in the mid-1960s to a boxy two-story building with security cameras and windowless rooms, to deter rivals from snooping on toy designs.

From The Wall Street Journal