Словарь синонимов английского языка - imperative

(adj) 1. mandatory, compulsory, necessary, required, requisite, demanded, obligatory, indispensable, essential, crucial, vital, urgent, pressing, exigent: It is imperative that we catch the 5. 04. to London. 2. imperious, commanding, authoritarian, overbearing, peremptory, autocratic, domineering, magisterial, lordly, arbitrary, dictatorial, dogmatic, tyrannical, despotic, Colloq bossy: We were all shaken into obedience by her imperative tone.