implies a pressing need but does not always connote absolute indispensability
is applied to that which is required by the circumstances or for the purpose and generally suggests a requirement that is imposed externally rather than an inherent need the requisite experience for a position
person or thing cannot be done without if the specified or implied purpose is to be achieved her diagnostic skills proved indispensable to the clinic
, in strict usage, is applicable to that which constitutes the absolute essence or the fundamental nature of a thing and therefore must be present for the thing to exist, function, etc. food is essential to life
Find another word for essential. In this page you can discover 61 synonyms, antonyms, idiomatic expressions, and related words for essential, like: required, vital, necessary, sine qua non, requirement, basic, underlying, quintessential, minor, peripheral and elementary.