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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(31) There's no essential difference between a metropolitan and a peasant.
(32) Government support will be essential if the project is to succeed.
(33) Positive active mind essential.
(34) It is essential that the public sector orientates itself more towards the consumer.
(35) Ambitious attitude essential.
(36) It is becoming almost essential for students to have a second language.
(37) In spite of the bad things he's done I still believe in his essential goodness.
(38) And now here is my secret, a very simple secret. It is only with the heart that one can see rightly; what is essential is invisible to the eyes.
(39) The important thing in Life is not triumph, but the struggle; the essential thing is not to have conquered but to have fought well.
(40) It is only with the heart that one can see rightly. What's essential is invisible to the eyes.
(41) Love is that condition in which the happiness of another person is essential to your own. Robert A. Heinlein 
(42) It was absolutely essential to separate crops from the areas that animals used as pasture.
(43) Close collaboration between the Bank and the Fund is not merely desirable, it is essential.
(44) The charity will be taking food and essential supplies to six refugee camps.
(45) The ability to impart knowledge and command respect is the essential qualification for teachers.
(46) A windproof jacket is an essential item of clothing for hillwalking.
(47) The power station has been shut down for essential maintenance.
(48) A basic grounding in math is essential for the economics course.
(49) A good sleeping bag is an essential part of every campers equipment.
(50) The core of regular contributors is essential to the magazine.
(51) The museum is closed while essential repairs are being carried out.
(52) Good nutrition is essential if patients are to make a quick recovery.
(53) It is essential to book in advance.
(54) What is the essential theme of the play?
(55) A knowledge of French is an absolute essential.
(56) They lay on all essential services.
(57) Adaptability is essential to survival in a changing environment.
(58) 'Aromatherapy oils' are not pure essential oils but dilutions.
(59) It is essential our prices remain competitive.
(60) A healthy diet should provide all your essential nutrients.
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.