Word Type

Adjective

Adjective

Noun

The word "rigid" can be used as adjective, adjective and noun.

Word Relationships

Opposites (Antonyms)

compromising flexible moving nonrigid

Capable Of

mean unchanging or inflexible in views

Coordinate Terms

nonrigid semirigid

Derived Terms

multirigid nonrigid overrigid rigid body rigid body dynamics rigid-leaf poison rigidification rigidify rigidise rigidity rigidize rigidly rigidness rigidulous semirigid subrigid superrigid unrigid

Etymologically Related To

rigor

Context

aeronautics

Broader Terms (Hypernyms)

dirigible

Narrower Terms (Hyponyms)

Zeppelin

Related Terms

rigor rigorous rigour

Related Terms

bicycle fixed flexible moving rigor rigorous rigour stiff suspension system unbending uncompromising

Similar Terms

inflexible inflexible intolerant nonmoving semirigid semirigid unadaptable unmoving

Synonym Network

fixed strict unbending

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.