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English definition of “critical”

critical

adjective  /ˈkrɪt̬·ɪ·kəl/ us  

critical adjective (IMPORTANT)

of the greatest importance: critical industries What happens in the next 48 hours is critical.

critical adjective (VERY BAD)

very bad or dangerous: He was admitted to Metropolitan Hospital in critical condition.

critical adjective (JUDGING ENTERTAINMENT)

showing approval by those whose job is to judge entertainment: The movie was a financial and critical success.

critical adjective (DISAPPROVING PERSON)

expressing an opinion about something or someone, esp. a negative opinion: My mother is always so critical of the way I dress!
(Definition of critical from the Cambridge Academic Content Dictionary © Cambridge University Press)
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