Synonym: basic, fundamental, important, necessary, needed, required, vital. Similar words: essentially, essentiality, potential, potentially, tangential, residential, influential, presidential. Meaning: [ɪ'senʃl] 
n. anything indispensable. adj. 1. absolutely necessary; vitally necessary 2. basic and fundamental 3. of the greatest importance 4. being or relating to or containing the essence of a plant etc 5. defining rights and duties as opposed to giving the rules by which rights and duties are established 6. absolutely required and not to be used up or sacrificed.
n. anything indispensable. adj. 1. absolutely necessary; vitally necessary 2. basic and fundamental 3. of the greatest importance 4. being or relating to or containing the essence of a plant etc 5. defining rights and duties as opposed to giving the rules by which rights and duties are established 6. absolutely required and not to be used up or sacrificed. 
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(241) It is true that most plant foods fall short in one or more of the essential amino acids.
(242) His essential point, that those who hold information hold power, is absolutely correct.
(243) If you dislike the aroma, you have only wasted a tiny amount of essential oil.
(244) Any essential communication should be sent in writing and all letters of acceptance should be sent in as a matter of urgency.
(245) In proper balance, these substances are essential to aquatic life.
(246) To put this project into perspective, it is essential to examine Mary's short, but action-packed sailing career.
(247) We run a management service which is essential for the absentee landlord.
(248) Voice tone is an essential signal in helping the active / aggressive child inhibit his behavior.
(249) Although similar in appearance, the two breeds actually have a number of essential differences.
(250) While all essential fatty acids are polyunsaturated, not all polyunsaturated fatty acids are essential.
(251) The Romantics had raised the alarm about the disintegration in modern society of much that is essential to the full human experience.
(252) Scientific analysis of society was considered an essential preliminary to the effective reform of social and political arrangements.
(253) He was prescribed a course of multivitamins, essential fatty acids, and glutathione supplements.
(254) That makes this new release an exceptionally attractive one, and essential listening for this much-loved violinist's admirers.
(255) The essential act of war is destruction, not necessarily of human lives, but of the products of human labor. War is a way of shattering to pieces, or pouring into the stratosphere, or sinking in the depths of the sea, materials which might otherwise be used to make the masses too comfortable, and hence, in the long run, too intelligent. George Orwell 
(256) Both aerobic exercise and strength training are essential for good nutrition and quality of life.
(257) It is essential that the impact of resource allocation formula is justifiable on grounds other than the composition of any particular formula.
(258) The method adopted by larger animals to speed up the distribution of essential materials is to force carrier-fluid through transport systems.
(259) Far more career plans reflected concerns for acquiring the strategy and related client skills so essential to advancement within the firm.
(260) This is an essential purchase for any admirer of Barbirolli.
(261) Radical rhetoric can disguise essential continuities in policy or simply provide a posthoc gloss to changes which were happening anyway.
(262) It is also essential for those providing services to young people to cling on to their adulthood.
(263) One Systern now being scrutinized is absolutely essential for the proper wiring up of neurons in the brain of the developing fetus.
(264) The submarine tragedy reminds us that armaments and related technologies remain the main sump that diverts funds from essential human priorities.
(265) Today, powerful[Sentence dictionary][sentencedict.com], targeted marketing is just as essential as any other dimension in assuring entrepreneurial success.
(266) Method: Mix the essential oil into the almond oil and stir into the other ingredients to form a paste.
(267) The essential design of a grand piano, apart from incremental technical advances, has not changed for more than a century.
(268) The essential fatty acids therefore are cis form, polyunsaturated fatty acids.
(269) This liquidity, and the market maker's ability to adjust prices for news events, is essential for big investors.
(270) It is an essential mechanism of language to assemble by name what is toilsome or impossible to assemble by hand.
More similar words: essentially, essentiality, potential, potentially, tangential, residential, influential, presidential, essence, sentiment, substantial, substantially, assessment, differentiate, passenger, assess, vessel, initial, partial, dessert, finesse, partially, palatial, initially, depressed, senseless, absent, present, consent, sentence.