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crucial

adj.
B2 Upper Intermediate Oxford US //ˈkɹuʃəɫ// UK //kɹˈuːʃəl// cru·cial Academic Archaic General-service Slang

adj. extremely important or necessary. You use this when something is so significant that it can change the final result of a situation.

adj. of the highest importance; decisive for the final outcome of a situation. Often used to describe a factor or moment upon which success or failure depends.


SIMPLE

Water is crucial for all living things.

CONTEXTUAL

The witness provided crucial evidence that helped the jury reach a final decision in the case.

COMPLEX

While the initial funding was helpful, the team's ability to adapt to shifting market demands proved to be the most crucial factor in their long-term survival.

Synonyms
Antonyms
Origin

1706, from French crucial, a medical term for ligaments of the knee (which cross each other), from Latin crux, crucis (“cross”) (English crux), from the Proto-Indo-European *(s)ker- (“to turn, to bend”). The meaning “decisive, critical” is extended from a logical term, Instantias Crucis, adopted by Francis Bacon in his influential Novum Organum (1620); the notion is of cross fingerboard signposts at forking roads, thus a requirement to choose.

Usage

Commonly followed by the prepositions 'to' or 'for'. Often used in the structure 'It is crucial that...' followed by a subjunctive or 'should' clause.

Pitfall

This is more crucial than that.This is more important than that.Crucial is often considered a non-gradable adjective; while 'more crucial' is used in casual speech, formal writing prefers 'more important' or 'even more crucial'.

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