The definition of crucial is something that is essential or vitally important.
Need is defined as to want, desire or require.
Of the greatest importance; crucial.
Designating or of important products or raw materials subject to increased production and restricted distribution under strict control, as in wartime
(Biochemistry) Being a substance that is required for normal functioning but cannot be synthesized by the body and therefore must be included in the diet:
Having high social rank or influence; prominent:
The definition of indispensable is essential or absolutely necessary.
Related to the emergency or to the provision of assistance.
Find another word for life-and-death. In this page you can discover 19 synonyms, antonyms, idiomatic expressions, and related words for life-and-death, like: life-or-death, crucial, earth-shaking, of vital importance, necessity, need, no laughing matter, all-important, consequential, critical and earth-shattering.