Synonyms of indispensable in English:

indispensable


See US English definition of indispensable

See UK English definition of indispensable

See Spanish definition of indispensable

adjective

1‘education is indispensable for the preservation of democracy’

SYNONYMS
essential, crucial, necessary, key, vital, needed, required, called for, requisite, important, all-important, vitally important, of the utmost importance, of great consequence, of the essence, critical, life-and-death, imperative, mandatory, compulsory, obligatory, compelling, urgent, pressing, burning, acute, paramount, pre-eminent, high-priority, significant, consequential
ANTONYMS

dispensable, superfluous, non-essential