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Unpleasure vs Undefined - What's the difference?

unpleasure | undefined |

As a noun unpleasure

is (rare) unpleasantness; displeasure.

As an adjective undefined is

lacking a definition or value.

unpleasure

English

Noun

(-)
  • (rare) Unpleasantness; displeasure.
  • (psychology) A sense of internal discomfort opposed to pleasure, produced by impeded impulses from the ego.
  • *1999 , Joyce Crick, translating Sigmund Freud, The Interpretation of Dreams , Oxford 2008, p. 182:
  • *:The life of the psyche also has at its disposal wishes whose fulfilment arouses unpleasure – which seems a contradiction, but can be explained if we take into account the presence of the two psychical agencies and the censorship prevailing between them.

    • 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