fluidity
Americannoun
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fluidities
plural
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the quality or state of being fluid.
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Physics.
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the ability of a substance to flow.
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a measure of this ability, the reciprocal of the coefficient of viscosity.
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noun
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the state of being fluid
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physics the reciprocal of viscosity
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of fluidity
Explanation
Fluidity is a quality of being graceful or flowing, like the fluidity of a dancer's movements. Things that move with easy, smooth motions have fluidity — think of clouds moving across the sky on a windy day, or the way a modern dancer's body moves. This adjective can also mean "changeable," like the fluidity of ideas being exchanged during a high school debate class. As a physical quality, you might also describe the fluidity of any substance that's fluid, or behaves like a liquid.
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.
See Examples For:
“Just continuing to come in and work on it. The jumper, I’ve been in the gym all summer working on fluidity and the speed of my release, stuff like that, moving,” James said.
From Los Angeles Times ● Oct. 3, 2026
While Armani already used these luminous touches in his eveningwear, Silvana Armani has multiplied them to emphasise the fluidity and lightness of her silhouettes.
From Barron's ● Sep. 27, 2026
Twelve months ago, the 22-year-old American's game was clouded by uncertainty but returns with more confidence and fluidity in her serve.
From BBC ● Aug. 30, 2026
Ms. Loughridge and Mr. Patteson allow for a certain fluidity in their arrangement, for theirs is an attempt “to organize the non-existent.”
From The Wall Street Journal ● Aug. 7, 2026
I walked, struck by the merging fluidity of forms seen through the lenses.
From "Invisible Man" by Ralph Ellison
Gerwig’s “Little Women” leans into the book’s fluidities and contradictions, especially among the characters themselves, who are self-sacrificing and ethereal one moment and graspingly materialistic the next.
From Washington Post ● Dec. 18, 2019
His hands pass over the keys and he produces Chopin-like fluidities.
From Confessions of a Young Man by George (George Augustus) Moore
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.
