1. Naively or unreasonably optimistic
   "I found the article regarding earnings growth slightly Panglossian" 
2. Of or relating to the view that this is the best of all possible worlds

Encyclopedia: Panglossian

• thyroxine
• thyrse
• thyrsopteris
• Thyrsopteris elegans
• Psychodidae
• psychodrama
• psychodynamics
• psychogalvanic response
• psychogenesis
• psychogenetic
• psychogenic
• psychogenic fugue
• psychokinesis
• psychokinetic
• psycholinguist
• psycholinguistic
• psycholinguistics
• psychological
• psychological condition
• psychological disorder
• psychological feature
• psychological medicine
• psychological moment
• psychological operation
• psychological science