imperative

In a sentence

as nuclear weapons proliferate, preventing war becomes imperative

जब परमाणु हतियारहरू फैलिन्छन्, युद्ध रोक्नु अनिवार्य हुन्छ

requests that grew more and more imperative

झन्झन् अनिवार्य बन्दै गएका अनुरोधहरू