Bedrock, acute, basic, condition, basics, and basis are all synonyms for essential. Inessential, unimportant, and optional are antonyms of essential. And here are 99 another word for essential.
Acute, all-important, burning, called for, compelling, compulsory, critical, crucial, high-priority, imperative, important, indispensable, key, life-and-death, mandatory, necessary, needed, obligatory, of great consequence, of the essence, of the utmost importance, paramount, pre-eminent, pressing, required, requisite, significant, urgent, vital, vitally important, and consequential are all synonyms for essential.
Basic, cardinal, central, characteristic, chief, critical, elemental, elementary, focal, foundational, fundamental, indispensable, inherent, innate, intrinsic, key, necessary, pivotal, primary, principal, quintessential, rudimentary, salient, staple, underlying, vital, and ingrained are all another word for essential.
Condition, desideratum, necessary/essential item, necessity, need, precondition, prerequisite, qualification, requirement, requisite, sine qua non, specification, stipulation, and must are all synonyms for essential.
Basics, basis, bedrock, brass tacks, core, crux, essence, facts, first principles, foundations, fundamentals, groundwork, hard facts, kernel, marrow, meat, nitty-gritty, nub, nuts and bolts, practicalities, preliminaries, principles, realities, rudiments, sine qua non, and abc are all another word for essential.
Essential synonym page has a variety of synonyms that differ in length. 3 synonyms with 3, and 14 letters and 4 synonyms with 4 letters. 8 synonyms with 5, 7, and 11 letters and 7 synonyms with 6 letters.
6 synonyms with 8 letters and 16 synonyms with 9 letters. 12 synonyms with 10 letters and 9 synonyms with 12 letters. 5 synonyms with 13 letters and 1 synonym with 15, 16, 18, 21, and 22 letters. For a total of 94 another word for essential.
Water is essential for life.
Safety is essential at work.
Vitamins are essential for health.
It's essential to stay focused.