crucial
crucial — adjective
1. extremely important because the result or success of something depends on it
extremely important because the result or success of something depends on it
Aoi's contribution was crucial to the success of the science fair.
crucial to [noun phrase] — preposition pattern
Élise knew that getting enough sleep was crucial for exam performance.
crucial for [gerund/noun] — preposition pattern
This crucial piece of evidence persuaded the jury to change their verdict.
It was crucial that Ayesha submit her application by Friday's deadline.
Linh found the mentor's advice crucial when applying to university.
- essential
focuses on necessity rather than decisive importance; something you cannot do without
- vital
equally strong, but suggests something is needed to keep something alive or functioning
- critical
similar meaning, but can also mean 'involving harsh judgement' or 'at a turning point'
- pivotal
suggests something is the central point around which other things change or develop
- unimportant
of little or no significance
- trivial
of very little value or importance
- insignificant
too small to be important or worth considering
文法句型
crucial + to + noun / noun phrase
crucial + for + noun / gerund
it is crucial that + subject + verb (subjunctive)
find/consider + noun + crucial (object complement)
用法筆記
Common in the patterns 'crucial to [noun]' and 'crucial for [noun/gerund]', with little difference in meaning. The adverb crucially often modifies whole clauses: 'Crucially, the funding arrived on time.'