Definitions

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

Steel mills are actively maintaining production and rigid demand remains robust, providing solid support for iron ore prices, they note.

From The Wall Street Journal • May 22, 2026

The similarities to the operating room were obvious: the physical space was rigid, the moves repetitive, the pressure intense.

From Los Angeles Times • May 18, 2026

There are rigid rules and nuances when it comes to using a QCD, however, so attention to detail is a must.

From Barron's • May 9, 2026

Moss could see her gripping the edge of the pulpit, her fingers tense and rigid, and he moved back to stand next to Javier.

From "Anger Is a Gift" by Mark Oshiro

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

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!