fluidity

noun

flu·​id·​i·​ty flü-ˈi-də-tē 

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

In settled possession, expect to see fluidity from the midfielders. — Liam Tharme, New York Times, 18 Aug. 2026

There was a fluidity to their performance that treasured passion over technical precision. — Larisha Paul, Rolling Stone, 15 Aug. 2026

That same fluidity carried into the musical’s implementation of Keys’ songs. — Maya Santiago, San Diego Union-Tribune, 13 Aug. 2026

Dreaming explores what happens when 21st-century gender fluidity collides with the more rigid identity categories enforced by the state in a time of war. — Leslie Felperin, HollywoodReporter, 13 Aug. 2026

Word History

First Known Use

1603, in the meaning defined at sense 1

Rhymes for fluidity

• acidity
• aridity
• avidity
• cupidity
• humidity
• liquidity
• lucidity
• morbidity
• placidity
• rancidity
• rapidity
• rigidity

Kids Definition

fluidity

noun

flu·​id·​i·​ty flü-ˈid-ət-ē 

: the quality or state of being fluid

Medical Definition

fluidity

noun

flu·​id·​i·​ty flü-ˈid-ət-ē 

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