fluidity

noun

flu·​id·​i·​ty flü-ˈi-də-tē How to pronounce fluidity (audio)
1
: the quality or state of being fluid
2
: the physical property of a substance that enables it to flow

Examples of fluidity in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
There was plenty of positional fluidity under Howe, but his go-to system was 4-3-3. — Chris Weatherspoon, New York Times, 5 Aug. 2026 Sullivan gives her a gaze that can shift in an instant from doe-eyed warmth to dead-eyed menace — and physical fluidity with just a hint of mechanical stiffness and killer strength when threatened. — David Rooney, HollywoodReporter, 3 Aug. 2026 On the flip side, Drinkwitz has demonstrated a keen ability to navigate the fluidity with his teams winning 29 games over the last three seasons. — Vahe Gregorian, Kansas City Star, 3 Aug. 2026 The look merged fluidity with summer knitwear in a vibrant, fiery red. — Julia Teti, Footwear News, 27 July 2026 See All Example Sentences for fluidity

Word History

First Known Use

1603, in the meaning defined at sense 1

Time Traveler
The first known use of fluidity was in 1603

Rhymes for fluidity

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Browse Nearby Words

fluidify
fluidity
fluidization
See all Nearby Words

Cite this Entry

“Fluidity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fluidity. Accessed 9 Aug. 2026.

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Kids Definition

fluidity

noun
flu·​id·​i·​ty flü-ˈid-ət-ē How to pronounce fluidity (audio)
: the quality or state of being fluid

Medical Definition

fluidity

noun
flu·​id·​i·​ty flü-ˈid-ət-ē How to pronounce fluidity (audio)
plural fluidities
1
: the quality or state of being fluid
2
a
: the physical property of a substance that enables it to flow
b
: the reciprocal of viscosity

More from Merriam-Webster on fluidity

Nglish: Translation of fluidity for Spanish Speakers

Britannica.com: Encyclopedia article about fluidity

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