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Definition of optimism


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op·ti·mism  audio  (pt-mzm) KEY 

NOUN:
  1. A tendency to expect the best possible outcome or dwell on the most hopeful aspects of a situation: "There is a touch of optimism in every worry about one's own moral cleanliness" (Victoria Ocampo).
  2. Philosophy
    1. The doctrine, asserted by Leibnitz, that this world is the best of all possible worlds.
    2. The belief that the universe is improving and that good will ultimately triumph over evil.

ETYMOLOGY:
French optimisme, from New Latin optimum, the greatest good ; see optimum


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