Pollyanna
Moby thesaurus: Leibnizian optimist, aspirant, aspirer, chiliast, daydreamer, hopeful, hoper, irrepressible optimist, millenarian, millennialist, millennian, optimist, perfectibilist, perfectibilitarian, perfectionist, philosophical optimist, ray of sunshine, utopian, wishful thinker.
debug info: 0.0512