essential

/ɪˈsɛn.ʃəl/

noun

  1. 1

    A necessary ingredient.

  2. 2

    A fundamental ingredient.

adjective

  1. 1

    Necessary.

  2. 2

    Very important; of high importance.

  3. 3

    Necessary for survival but not synthesized by the organism, thus needing to be ingested

  4. 4

    Being in the basic form; showing its essence.

    “Don’t mind him being grumpy. That’s the essential Fred.”
  5. 5

    Really existing; existent.

  6. 6

    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.

  7. 7

    Idiopathic.

Synonyms

Antonyms

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