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.

They added that the coils are rigid and don’t sag over time like single-strand wires, “which helps reduce the risk of accidental wildlife entanglement.”

From Los Angeles Times • Jun. 3, 2026

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

From Science Daily • May 28, 2026

The rigid roof panel helps attenuate the little engine’s effortful ringadingding, which loses its charm after hour four or so.

From The Wall Street Journal • May 23, 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

Even Henriette, still at rigid attention, grinned when hands popped out as he wheeled his car sedately around the corners.

From "Cheaper by the Dozen" by Frank B. Gilbreth Jr. and Ernestine Gilbreth Carey

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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