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

Freedom and fluidity create ambiguities that the historical record cannot always resolve. — Colleen Dulle, Harpers Magazine, 22 Sep. 2026

A lot of the critiques up to this point have been about a lack of fluidity and flow to dancers — people look stiff, this isn’t surprising — but all of that is gone here. — Maggie Fremont, Vulture, 17 Sep. 2026

The four thematic worlds included Earth, Water, Light and Sky, ranging from natural pigments and raw textures to fluidity and transparency; shimmer and light shadows, while the sky evoked infinity with voluminous and atmospheric surfaces. — Mayu Saini, Footwear News, 16 Sep. 2026

After shedding the constraints of winter coats and layers, designers introduced a freedom of movement and fluidity to their collections with fringe. — ABC News, 16 Sep. 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