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crucial - definition and synonyms

 
 
 
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adjective crucial pronunciation in British English /ˈkruːʃ(ə)l/
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  1. 1
    something that is crucial is extremely important because it has a major effect on the result of something
    We believe the question being investigated by the Commission is one of crucial importance to the country.
    Anderson played a crucial role in the team’s 3–2 victory on Saturday.
    a crucial factor/element/part: Experience is, of course, a crucial factor in deciding who would be the best person for the job.
    crucial for: The money is crucial for the research.
    crucial to: Resolving this issue is crucial to making peace work.
    it is crucial (that): It is crucial that all students develop these basic skills.
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derived word

crucially

adverb
This is crucially important.
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