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

Structure and fluidity find a balance throughout the designs, which revisit the brand’s signature design codes. — Julia Teti, Footwear News, 6 Nov. 2026

Julia Ducournau’s Titane similarly presents sexuality—and bodily fluidity—as emerging from a traumatic accident. — Literary Hub, 30 Oct. 2026

Some are even experiencing similar levels of social fluidity as prior generations. — Gili Malinsky, CNBC, 23 Oct. 2026

The fluidity between indoors and outdoors is one of the suite’s principal attractions, with two magnificent, interconnected terraces connected to the suite through large glass doors. — Condé Nast, Condé Nast Traveler, 22 Oct. 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