rigidity

noun

ri·​gid·​i·​ty rə-ˈji-də-tē 

plural rigidities

1

: the quality or state of being rigid

2

: one that is rigid (as in form or conduct)

Synonyms of rigidity

• severity

Examples of rigidity in a Sentence

sometimes the rigidity of the headmaster's discipline was deemed excessive by even much of the faculty

Recent Examples on the Web

Within that rigidity lay a fear of becoming overwhelmed by patients’ suffering and then unsettled just before operating. — Robert M. Kinast, STAT, 3 Nov. 2026

Embracing flexibility over rigidity gives materials scientists a scalable blueprint for designing custom materials from scratch. — Mrigakshi Dixit, Interesting Engineering, 2 Nov. 2026

Its three-piece aluminum construction is a welcome departure from the plastic fare common among budget laptops, offering a quality feel and impressive rigidity. — Charles Jefferies, PC Magazine, 31 Oct. 2026

Brazilian political scientist Jairo Nicolau, who studies presidential elections, said one of the most striking features of this year's contest was the rigidity of Brazilians' political allegiances. — Catherine Osborn, NPR, 26 Oct. 2026

Word History

First Known Use

1607, in the meaning defined at sense 1

Rhymes for rigidity

• acidity
• aridity
• avidity
• cupidity
• fluidity
• humidity
• liquidity
• lucidity
• morbidity
• placidity
• rancidity
• rapidity

Medical Definition

rigidity

noun

ri·​gid·​i·​ty rə-ˈjid-ət-ē 

plural rigidities

: the quality or state of being rigid: as

a

: abnormal stiffness of muscle

muscle rigidity symptomatic of Parkinson's disease

—Diane Gershon

b

: emotional inflexibility and resistance to change