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

But its loose, lightweight construction gave it a fluidity that a more elaborate mechanical version might have lost. — Callum McLennan, Variety, 13 Oct. 2026

This is to say nothing about gender, kinks, preferences, fluidity, and other nuanced things that complicate sexuality. — Chris Murphy, Vanity Fair, 12 Oct. 2026

According to Johnson, Wilson was particularly fascinated by Inanna, also known as Ishtar, whose mythology includes associations with gender fluidity. — Maggie Clancy, Footwear News, 10 Oct. 2026

Hilton’s attack on Becerra’s dad was never meant for a California audience, where the Latino experience of fluidity in geography and identity holds center stage. — Los Angeles Times, 9 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