1. (n.) One who holds the opinion that all events are ordered for the best.
2. (n.) One who looks on the bright side of things, or takes hopeful views; -- opposed to pessimist.
Thesaurus Entries
Leibnizian optimist, Pollyanna, aspirant, aspirer, chiliast, dreamer, hopeful, hoper, idealist, irrepressible optimist, millenarian, millennialist, millennian, perfectibilist, perfectibilitarian, perfectionist, philosophical optimist, positivist, ray of sunshine, utopian
