| 1. | absolutely necessary or required; unavoidable: It is imperative that we leave. |
| 2. | of the nature of or expressing a command; commanding. |
| 3. | Grammar. noting or pertaining to the mood of the verb used in commands, requests, etc., as in Listen! Go! Compare indicative (def. 2), subjunctive (def. 1). |
| 4. | a command. |
| 5. | something that demands attention or action; an unavoidable obligation or requirement; necessity: It is an imperative that we help defend friendly nations. |
| 6. | Grammar.
|
| 7. | an obligatory statement, principle, or the like. |

im·per·a·tive (ĭm-pěr'ə-tĭv) adj.
[Middle English imperatif, relating to the imperative mood, from Old French, from Late Latin imperātīvus, from Latin imperātus, past participle of imperāre, to command; see emperor.] im·per'a·tive·ly adv., im·per'a·tive·ness n. |
A grammatical category describing verbs that command or request: “Leave town by tonight”; “Please hand me the spoon.”
imperative
imperative language