rigid

[rij-id] / ˈrɪdʒ ɪd /

ADJECTIVE

stiff, strict, severe

Synonyms

STRONGEST

adamant austere definite exact fixed hard-line harsh inflexible intransigent rigorous solid stern stringent uncompromising unyielding

WEAK

adamantine bullheaded changeless chiseled dead set determined firm hard incompliant inelastic inexorable invariable locked-in obdurate set set in stone single-minded static strait-laced unalterable unbending unbreakable unchanging undeviating unmoving unpermissive unrelenting

Antonyms

STRONGEST

broken easy flexible gentle imprecise indefinite inexact irresolute lenient mild pliant soft tolerant unfixed unreliable willing yielding

WEAK

bending limber pliable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As the pH shifts, the molecular bonds holding the tissue rigid begin to loosen.

From Science Daily • May 28, 2026

The cooperation between our human ancestors may have been more flexible, without rigid rules about who was allowed to reproduce.

From Slate • May 10, 2026

Under former boss Gareth Taylor, City were tough to beat but played to a rigid structure that some teams had learned how to exploit.

From BBC • May 6, 2026

The shoes sport chunky soles with rigid, curved carbon plates and lightweight foam, and Nike asserts they improve running economy by as much as 4%.

From Los Angeles Times • Apr. 27, 2026

Every day, from dawn until midnight, the boys underwent a rigid routine that consisted of calisthenics, rifle practice, and fire-coordination drills.

From "Hitler Youth: Growing Up in Hitler's Shadow" by Susan Campbell Bartoletti

Vocabulary lists containing rigid

The New SAT: Words to Capture Tone

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The SAT: Words to Capture Tone, List 6

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The Cay

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