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

Given the pace of model development, buying dedicated hardware for most AI workloads can create unnecessary rigidity. — Ameya Kanitkar, Forbes.com, 21 Sep. 2026

In 2022, she was diagnosed with the rare and progressive autoimmune and neurological disorder — which can cause muscle rigidity, mobility issues, painful spasms and shortness of breath. — Bailey Richards, PEOPLE, 20 Sep. 2026

Internal pressure gave the missile its structural rigidity, meaning the vehicle could buckle if insufficiently pressurized. — Atharva Gosavi, Interesting Engineering, 19 Sep. 2026

The result is structure without rigidity, flexibility without losing accountability, and independence without losing connection. — Connie Etemadi, Miami Herald, 16 Sep. 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