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1. Constituting or being part of the nature or essence of something; inherent: "In that era of general good will ... few Americans doubted the essential goodness of their society" (David Halberstam).
2. Fundamentally important or necessary: essential ingredients. See Synonyms at indispensable.
3. Medicine Of, relating to, or being a condition or a disease whose cause is unknown: essential hypertension.
4. Biochemistry Being a substance that is required for normal functioning but cannot be synthesized by the body and therefore must be included in the diet: essential amino acids.
1. Something fundamental.
2. Something necessary or indispensable.
es·sen′ti·al′i·ty (-shē-ăl′ĭ-tē), es·sen′tial·ness n.
es•sen•ti•al•i•ty(əˌsɛn ʃiˈæl ɪ ti)
n., pl. -ties.
1. the quality of being essential; essential character.
2. an essential feature, element, or point.
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|Noun||1.||essentiality - basic importance|
importance - the quality of being important and worthy of note; "the importance of a well-balanced diet"
vitalness - the quality of being essential to maintain life
indispensability, indispensableness, vitalness - the quality possessed by something that you cannot possibly do without
inessentiality - not of basic importance