OPTIMISM
optimism
(noun) a general disposition to expect the best in all things
optimism
(noun) the optimistic feeling that all is going to turn out well
Source: WordNet® 3.1
Etymology
Noun
optimism (usually uncountable, plural optimisms)
a tendency to expect the best, or at least, a favourable outcome
the doctrine that this world is the best of all possible worlds
the belief that good will eventually triumph over evil
Antonyms
• pessimism
Source: Wiktionary
Op"ti*mism, n. Etym: [L. optimus the best; akin to optio choice: cf.
F. optimisme. See Option.]
1. (Metaph.)
Definition: The opinion or doctrine that everything in nature, being the
work of God, is ordered for the best, or that the ordering of things
in the universe is such as to produce the highest good.
2. A disposition to take the most hopeful view; -- opposed to
pessimism.
Source: Webster’s Unabridged Dictionary 1913 Edition