unpressured
- adjective
- /ʌnˈprɛʃərd/
- The old aircraft had an unpressured cabin, so it could not fly at high altitudes.
Examples
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Because the room was unpressured, special equipment was not required for entry.
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Passengers noticed the difference when sitting in an unpressured section of the plane.
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The air in the balloon remained unpressured during the flight.
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Why is it important to keep the system unpressured?
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The old aircraft had an unpressured cabin, so it could not fly at high altitudes.
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Because the room was unpressured, special equipment was not required for entry.
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Passengers noticed the difference when sitting in an unpressured section of the plane.
Synonyms
Having no air or force pushing on it
Not filled with air, like a flat balloon
How Pressurized
Surface Forms
Morphology
unpressured = pressured (transparent) = un + pressure + ed
Adding un- to the adjective 'pressured' directly yields the opposite meaning, and the technical air/gas sense is still recoverable from that base.
Etymology
Unpressured is made of the parts un- ('not') and press ('push'), so imagine air that is not being pushed into a space. An unpressured cabin is therefore one where the air is not kept at higher pressure, which is why such aircraft cannot fly as high without extra equipment.