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Meaning of Panglossian

Pan•gloss•i•an

Pronunciation: (pan-glos'ē-un, -glô'sē-, pang-), [key]
— adj.
  1. characterized by or given to extreme optimism, esp. in the face of unrelieved hardship or adversity.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.