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critical

adjective (IMPORTANT)
 
 
/ˈkrɪt.ɪ.kəl/ US  /ˈkrɪt̬-/

Definition

B2 of the greatest importance to the way things might happen: The president's support is critical (to this project). a critical decisionVery important or urgent critically
 
 
/-i/ adverb
B2 a critically acclaimed TV series They were both critically injured in the crash.Analysing and evaluatingAssessing and estimating valueSerious and severeSevere
(Definition of critical adjective (IMPORTANT) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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