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English definition of “imperative”

imperative

adjective  /ɪmˈper·ə·t̬ɪv/ us  

imperative adjective (URGENT)

extremely important or urgent: [+ that clause] It is imperative that these medical supplies be delivered immediately.

imperative

noun  /ɪmˈper·ə·t̬ɪv/ us  

imperative noun (GRAMMAR)

grammar [U] the mood (= form) of a verb used for giving orders: In the phrase "Leave him alone," the verb "leave" is in the imperative.

imperative noun (SOMETHING URGENT)

[C] something that needs to be done or given attention immediately: The government has a moral imperative to provide equal access to high-quality education for all children.
(Definition of imperative from the Cambridge Academic Content Dictionary © Cambridge University Press)
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