Synonyms of crucial

crucial

adjective

ˈkrü-shəl 

as in key

of the greatest possible importance

water is crucial to our survival

Synonyms & Similar Words

• key
• critical
• vital
• pivotal
• essential
• fundamental
• necessary
• basic
• decisive
• elementary
• life-or-death
• instrumental
• life-and-death
• urgent
• requisite
• indispensable
• pressing
• weighty

Antonyms & Near Antonyms

• minor
• unimportant
• insignificant
• trivial
• inconsequential

Synonym Chooser

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

Recent Examples of crucial

The two leaders also reached an agreement to delay Chinese export curbs on strategically crucial rare earth materials. —Katherine Doyle, NBC news, 30 Oct. 2025

China has restricted the export of rare-earth minerals – crucial elements in electronics and military equipment. —David Goldman, CNN Money, 30 Oct. 2025

These capabilities are essential for a global fashion player like H&M Group, where transparency, fiber performance, and reliable supply are crucial to integrating recycled materials, the recycling firm stated. —Angela Velasquez, Sourcing Journal, 30 Oct. 2025

This is why their home security system is so crucial. —Rosy Cordero, Deadline, 30 Oct. 2025