CRUCIAL Synonyms: 23 Similar and Opposite Words

Q: How does the adjective 'crucial' contrast with its synonyms?

The words acute and critical are common synonyms of crucial . While all three words mean "of uncertain outcome," crucial suggests a dividing of the ways and often a test or trial involving the determination of a future course or direction. // a crucial vote

Q: Where would 'acute' be a reasonable alternative to 'crucial'?

While the synonyms acute and crucial are close in meaning, acute stresses intensification of conditions leading to a culmination or breaking point. // an acute housing shortage

Q: How are the words 'critical' and 'acute' related as synonyms of 'crucial'?

Critical adds to acute implications of imminent change, of attendant suspense, and of decisiveness in the outcome. // the war has entered a critical phase

crucial

adjective

ˈkrü-shəl

Definition of crucial

as in key

of the greatest possible importance water is crucial to our survival

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How does the adjective crucial contrast with its synonyms?

The words acute and critical are common synonyms of crucial. While all three words mean "of uncertain outcome," crucial suggests a dividing of the ways and often a test or trial involving the determination of a future course or direction.

a crucial vote

Where would acute be a reasonable alternative to crucial?

While the synonyms acute and crucial are close in meaning, acute stresses intensification of conditions leading to a culmination or breaking point.

an acute housing shortage

How are the words critical and acute related as synonyms of crucial?

Critical adds to acute implications of imminent change, of attendant suspense, and of decisiveness in the outcome.

the war has entered a critical phase

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of crucial The financing plan for the future Chiefs stadium across the state line in Kansas is moving forward, but one crucial piece of the puzzle has yet to be finalized. — Chris Higgins, Kansas City Star, 15 Oct. 2026 Both ships were sitting at anchor near the mouth of the Sulina canal that connects the Black Sea to the Danube River, which has become a crucial shipping export route for Ukraine, Reuters reported. — Jeremy Hsu, ArsTechnica, 15 Oct. 2026 Early detection and treatment with antibiotics are crucial, notes Erin Dawicki, a physician assistant in Boston and co-founder and CEO of LymeAlert, the first at-home test for the tickborne pathogen that causes Lyme disease. — Matt Alderton, Time, 15 Oct. 2026 Although drugmakers have become a popular target of lawmakers, Massachusetts lawmakers should boldly promote the industry, which plays a crucial role in the state’s economy, Auchincloss said. — John Wilkerson, STAT, 15 Oct. 2026 See All Example Sentences for crucial

Recent Examples of Synonyms for crucial

Adjective

Trump criticized Israel's decision to attack a key Iranian gas field in the first weeks of the war.

— Arkansas Online, Arkansas Online, 19 Oct. 2026
These tools are primarily used by those who make less than $50,000 according to a 2022 Government Accountability Office report, with food and rent being the key reasons people use the service, one case study of food and restaurant workers found.

— Sasha Rogelberg, Fortune, 18 Oct. 2026

Definition of key

Adjective

The critical need for a crisis communications plan, regardless of the size of your business.

— Janelle Ash , Christina Dugan Ramirez, FOXNews.com, 13 Oct. 2026
If a critical variable exceeds an allowable limit, the safety function overrides the control system regardless of why the controller made its decision.

— Gregory Shahnovsky, Forbes.com, 13 Oct. 2026

Definition of critical

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crows

crucial

crucible

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“Crucial.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/crucial. Accessed 21 Oct. 2026.

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Synonyms of crucial

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