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

Reading these two new plays this year, I was struck by the stylistic vigor and structural fluidity. — Theater Critic, Los Angeles Times, 8 July 2026

Performances are judged on criteria including line choice, control, fluidity, technique and style rather than speed. — Michelle Bruton, Forbes.com, 7 July 2026

Predictably, a major point of contention is exhibits and education materials—particularly those targeted at children and young people—that discuss gender fluidity, gender normativity, gender identity, and gender roles. — Harrison Jacobs, ARTnews.com, 6 July 2026

The Dutch were the neutral’s favourites throughout World Cup 1974, their Total Football taking the game to a new level, and delighting supporters with their fluidity, high defensive line and commitment to keep on attacking. — Michael Cox, New York Times, 1 July 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