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

To Trump, fluidity and inconsistency are virtues, not bugs. —Jeffrey Sonnenfeld, Fortune, 26 Mar. 2026

As one of only two women in last year’s round of designer reshuffles—the other being Proenza Schouler’s Rachel Scott—Trotter’s debut brought a fresh air of femininity and fluidity to the house, previously also helmed by Daniel Lee. —Laura Jackson, Vogue, 25 Mar. 2026

By directly translating human movement into robotic action, the system enables robots to closely follow and replicate human operators with high precision and fluidity. —Jijo Malayil, Interesting Engineering, 24 Mar. 2026

That fluidity extends to the fan experience. —Ana Gutierrez, Austin American Statesman, 20 Mar. 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