CozyEnglish

Nouns
1. (n.) imperative, imperative form, imperative mood, jussive mood;
  - a mood that expresses an intention to influence the listener’s behavior;

2. (n.) imperative;
  - some duty that is essential and urgent;

Adjectives
1. (adj.) imperative;
  - requiring attention or action;
  - “as nuclear weapons proliferate, preventing war becomes imperative”; “requests that grew more and more imperative”;

2. (adj.) imperative;
  - relating to verbs in the imperative mood;