Dictionary > English Dictionary > Definition, synonym and antonym of essential
Meaning of essential by Wiktionary Dictionary

essential


    Etymology

    From Late Latin essentialis, from Latin essentia ( “being, essence” ) .

    Pronunciation

    • IPA: /ɪˈsɛn.tʃəl/, X-SAMPA: /I"sEn.tS@l/

    Adjective

    essential ( comparative more essential, superlative most essential )

    1. Necessary .
    2. Very important; of high importance .
    3. Being in the basic form; showing its essence .
      Don’t mind him being grumpy. That’s the essential Fred .
    4. ( of a lamination of a 3-manifold ) Such that each complementary region is irreducible, the boundary of each complementary region is incompressible by disks and monogons in the complementary region, and no leaf is a sphere or a torus bounding a solid torus in the manifold .
    5. ( medicine ) Idiopathic .

    Synonyms

    The terms below need to be checked and allocated to the definitions ( senses ) of the headword above. Each term should appear in the sense for which it is appropriate. Use the template {{sense|"gloss"}}, substituting a short version of the definition for "gloss" .

    Antonyms

    The terms below need to be checked and allocated to the definitions ( senses ) of the headword above. Each term should appear in the sense for which it is appropriate. Use the template {{sense|"gloss"}}, substituting a short version of the definition for "gloss" .
    • inessential, unessential, accidental, nonessential, unneeded, adscititious, unimportant, accessorial, unnecessary, incidental

    Related terms

    • essence


Explanation of essential by Wordnet Dictionary

essential


    Adjective
    1. defining rights and duties as opposed to giving the rules by which rights and duties are established

    2. basic and fundamental

    3. the essential feature
    4. of the greatest importance

    5. absolutely necessary

    6. essential tools and materials
      funds essential to the completion of the project
    7. being or relating to or containing the essence of a plant etc

    8. essential oil
    Noun
    1. anything indispensable

    2. the essentials of the good life


    Definition of essential by GCIDE Dictionary

    essential


    1. Essential ( ĕssĕnsjal ), a. [Cf. F. essentiel. See Essence.]
      1. Belonging to the essence, or that which makes an object, or class of objects, what it is.

      Majestic as the voice sometimes became, there was forever in it an essential character of plaintiveness. Hawthorne.

      2. Hence, really existing; existent.

      Is it true, that thou art but a name,

      And no essential thing? Webster ( 1623 ).

      3. Important in the highest degree; indispensable to the attainment of an object; indispensably necessary.

      Judgment's more essential to a general

      Than courage. Denham.

      How to live? -- that is the essential question for us. H. Spencer.

      4. Containing the essence or characteristic portion of a substance, as of a plant; highly rectified; pure; hence, unmixed; as, “an essential oil”. “Mine own essential horror.” Ford.



      5. ( Mus. ) Necessary; indispensable; -- said of those tones which constitute a chord, in distinction from ornamental or passing tones.

      6. ( Med. ) Idiopathic; independent of other diseases.

      Essential character ( Biol. ), the prominent characteristics which serve to distinguish one genus, species, etc., from another. -- Essential disease, Essential fever ( Med. ), one that is not dependent on another. -- Essential oils ( Chem. ), a class of volatile oils, extracted from plants, fruits, or flowers, having each its characteristic odor, and hot burning taste. They are used in essences, perfumery, etc., and include many varieties of compounds; as lemon oil is a terpene, oil of bitter almonds an aldehyde, oil of wintergreen an ethereal salt, etc.; -- called also volatile oils in distinction from the fixed or nonvolatile.

    2. Essential ( ĕssĕnsjal ), n.
      1. Existence; being. [Obs.] Milton.

      2. That which is essential; first or constituent principle; as, “the essentials of religion”.