imperative
/ɪmˈpɛɹ.ə.tɪv/adjective
Absolutely necessary; of the greatest importance.
Example sentences
- “It is imperative that patients finish the full course of medicine.”
- “Quick action is imperative when a fire breaks out.”
In grammar, the imperative is the command form of a verb ('Stop!'). The adjective often appears in 'it is imperative that'.