pivotal - definition and synonyms

adjective 

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/ˈpɪvət(ə)l/
  1. 1
    extremely important and affecting how something develops

    a pivotal moment in the history of the Egyptian state

    He played a pivotal role in the negotiations.

    a pivotal figure/player in US politics

    pivotal to:

    He sees these reforms as pivotal to our economic interests in Asia.

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derived word

pivotally

adverb
 Synonyms and related words