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Enthusiasm vs Undefined - What's the difference?

enthusiasm | undefined |

As a noun enthusiasm

is (obsolete|or|historical) possession by a god; divine inspiration or frenzy.

As an adjective undefined is

lacking a definition or value.

enthusiasm

English

(wikipedia enthusiasm)

Noun

  • (obsolete, or, historical) Possession by a god; divine inspiration or frenzy.
  • * 1946 , Bertrand Russell, History of Western Philosophy , ch. 1
    • The intoxication that they sought was that of ‘enthusiasm ’, of union with the god.
  • Intensity of feeling; excited interest or eagerness.
  • Something in which one is keenly interested.
  • * 1968 , Central States Archaeological Journal (volumes 15-16, page 154)
    • My main enthusiasm is attending and seeing the progress and interest of collectors, to meet old friends, and hopefully to make new friends.
  • * 2012 , Nicholas Joll, Philosophy and The Hitchhiker's Guide to the Galaxy (page 23)
    • Other Adamsian enthusiasms included: fast cars; restaurants; Bach, the Beatles, Pink Floyd and Dire Straits;

    Related terms

    * enthuse * enthusiast * enthusiastic * enthusiastically

    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