stationary
Americanadjective
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standing still; not moving.
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having a fixed position; not movable.
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established in one place; not itinerant or migratory.
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remaining in the same condition or state; not changing.
The market price has remained stationary for a week.
noun
adjective
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not moving; standing still
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not able to be moved
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showing no change
the doctors said his condition was stationary
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tending to remain in one place
Usage
What’s the difference between stationary and stationery? Stationary with an a is typically used as an adjective that means standing still, fixed in place, or not moving, as in a stationary bike or Face the camera and try to remain stationary. Stationery with an e is a noun that refers to paper for writing or writing materials. It most commonly refers to nice paper for writing, such as fancy notecards or special monogrammed paper for writing letters—you normally wouldn’t call just any old paper stationery. The two words mean completely different things, so the trick is remembering which spelling to use for each. Try this: think of the a in stationary as standing for anchor, which keeps it fixed in place. Think of the e in stationery as standing for envelope. Here’s an example of stationary and stationery used correctly in a sentence. Example: If you think about it, paperweights were invented to keep stationery stationary. Want to learn more? Read the full breakdown of the difference between stationary and stationery.
Commonly Confused
See stationery
Other Word Forms
Derived Forms
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stationarinessnoun
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nonstationaryadjective
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quasi-stationaryadjective
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unstationaryadjective
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stationarilyadverb
Inflected Forms
Nouns
Etymology
Origin of stationary
First recorded in 1400–50; late Middle English word from Latin word statiōnārius. See station, -ary
Explanation
Stationary means not moving. A stationary bike is the kind you find in the gym –– you pedal and pedal, but you just don’t go anywhere. Something stationary is staying right where it is, like that bike, or anything else that doesn’t budge. If your car crashes into a stationary van, it’s probably your fault because that van was parked. If your aunt is sick and in the hospital and has been that way for a while, the doctor might say her condition is stationary. Animals that don’t migrate are stationary. Troops that aren’t marching are stationary. Something stationary is still.
Vocabulary lists containing stationary
Commonly Confused Words, List 2
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Earth and the Solar System - Middle School
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Space Science (Astronomy) - Middle School
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A spokesperson said the congestion had been "severe and prolonged" with some vehicles stationary for hours during the red heat alert.
From BBC • Jun. 24, 2026
Today, she says everyday activities such as gardening and riding a stationary bicycle are far more enjoyable because of the reduction in pain.
From Science Daily • Jun. 23, 2026
This was mid-set and I mentioned it to the crowd because I had to be stationary.
From The Wall Street Journal • Jun. 22, 2026
The crash happened on the Strathspey Railway, a heritage railway run separately from mass-transit public services, and involved a stationary carriage and another train in the station.
From Barron's • Jun. 20, 2026
We drive through the gardens and outbuildings that surround it, and peeking out from behind the edge of the compound are the airplanes, white and stationary.
From "Allegiant" by Veronica Roth
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.