Definitions

1. adjective

excessively optimistic, especially to the point of being foolish or unrealistic.

“The character’s panglossic attitude towards the failing business was admirable, but ultimately unrealistic.”

2. noun

a person who has an excessively optimistic attitude, especially to the point of being foolish or unrealistic.

“He was known as a panglossic, always expecting the best outcome in any situation.”