Optimist
Pronunciation : Op"ti*mist
Part of Speech : n.
Etymology : [Cf. F. optimiste.]
Definition : 1. (Metaph.)
Defn: One who holds the opinion that all events are ordered for the best.
2. One who looks on the bright side of things, or takes hopeful views; -- opposed to pessimist.
Source : Webster's Unabridged Dictionary, 1913