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 Bødskov said talks with non-EU countries had reached a crucial phase. — ABC News, 4 Sep. 2026 It's become such a big issue that the National Republican Senatorial Committee, which is the Senate GOP campaign arm, said in a memo that the backlash against data centers could cost Republican Senator Jon Husted a crucial race in that state. — Dana Taylor, USA Today, 3 Sep. 2026 Why this signing matters Nyadjou’s signing is crucial with the Current struggling to maintain a full healthy squad this season. — Pj Green september 3, Kansas City Star, 3 Sep. 2026 What can actors do to protect a crucial tool of their craft from unwanted exploitation? — Jake Kanter, Deadline, 3 Sep. 2026 See All Example Sentences for crucial

Recent Examples of Synonyms for crucial

Adjective

The offence remains Toronto’s biggest liability, with key bats like Addison Barger done for the year and others struggling into September.

— Mitch Bannon, New York Times, 31 Aug. 2026
Axel Springer is expanding in the Middle East, joining a growing number of Western publishers with an editorial presence in the region — and testing a key pillar of its editorial beliefs.

— Max Tani, semafor.com, 31 Aug. 2026

Definition of key

Adjective

Engineers can develop critical reactor hardware internally while sourcing mature technologies elsewhere.

— Aamir Khollam, Interesting Engineering, 2 Sep. 2026
The mere possibility of losing its critical space assets in a surprise attack could push the United States to use its forces early or to delegate launch authority in ways that raise the risk of an accident, to avoid the devastating consequences.

— Jeffrey Lewis, Foreign Affairs, 1 Sep. 2026

Definition of critical

Adjective

Jäger compares the sounds of techno to the noise of Detroit’s industrial machinery—the music that drove the ersatz utopias of the late twentieth century is, in other words, merely a synthetic echo of a far more vital past.

— Robert Rubsam, New Yorker, 2 Sep. 2026
Fertilizer can give a lawn a boost, but knowing when to fertilize your lawn is vital for your grass to gain the full benefit of those vital nutrients.

— Megan Hughes, Better Homes & Gardens, 2 Sep. 2026

Definition of vital

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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 6 Sep. 2026.

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Synonyms of crucial

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