Also found in: Thesaurus, Medical, Encyclopedia.


1. Necessary or urgent: "It is imperative that we continue to move with speed to make housing more affordable" (Timothy Geithner). See Synonyms at urgent.
2. Expressing a command or plea; peremptory: requests that grew more and more imperative.
3. Grammar Of, relating to, or constituting the mood that expresses a command or request.
a. A rule, principle, or need that requires or compels certain action: "the internal tension in [military] doctrine, between the desire to prescribe a common way of fighting and the imperative of adjusting particular military actions to circumstances" (Eliot A. Cohen).
b. A command; an order.
2. Grammar
a. The imperative mood.
b. A verb form of the imperative mood.

[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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.imperativeness - the state of demanding notice or attention; "the insistence of their hunger"; "the press of business matters"
urgency - the state of being urgent; an earnest and insistent necessity
2.imperativeness - the quality of being insistent; "he pressed his demand with considerable instancy"
urgency - pressing importance requiring speedy action; "the urgency of his need"
References in classic literature ?
At the same instant the trainer spoke with sharp imperativeness and raised his whip, while the men on the outside lifted their irons and advanced them intimidatingly into the cage.
But whatever blemishes others might discern in William, to his friend's mind he was faultless; for Marner had one of those impressible self-doubting natures which, at an inexperienced age, admire imperativeness and lean on contradiction.
At the same time his voice rang out the single word, "Jerry!" In it was all the imperativeness of reproof and command and all the solicitous insistence of love.
She felt to the full all the imperativeness of the motives which urged Will's conduct.
Both had been troubled and roused, and they were drawing together with the sharpness and imperativeness of uniting elements.
The man's voice leaped to a higher pitch and was sharp with imperativeness. A large body plunged and panted.
Recognizing imperativeness of the dust extraction system in industrial applications, European manufacturers are integrating advanced technologies for offering application-specific solutions.
Impervious to the imperativeness of a balance of detachment between the personal and what is not, a sense of irrationality starts to worm its way in, undetected.
So, we realized the imperativeness of changing the brand name to something that is to pronounce, recall, and type, especially for the global consumers.
Obasa also harped on the imperativeness of upholding the recommendation of the 16-man committee.
Imperativeness of coal handling system in effective management of operations in power generation plants has spurred the emphasis of relevant industrialists on efficiency and emission control apropos of coal-based power.
Ambassador and Permanent Representative of Bangladesh to the UN Masud Bin Momen said this at the general debate of the General Assembly on the report of the Human Rights Council in New York recently, reports UNB "While our continued efforts and readiness for safe, voluntary and dignified repatriation of Rohingyas to their original place of abode in the Rakhine state is about to see fruition, one should therefore, not be oblivious of the imperativeness of ensuring accountability for the gravest atrocities perpetrated against them," he said.