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Feeler vs Undefined - What's the difference?

feeler | undefined |

As a noun feeler

is mistake.

As an adjective undefined is

lacking a definition or value.

feeler

English

Noun

(en noun)
  • (literally) Someone or something that feels.
  • (anatomy) An antenna or appendage used for feeling, especially on an insect.
  • (figuratively) Something ventured to test (an)other(s)' feelings, opinion, position.

    • Related terms

    * put out feelers

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined