Definify.com
Webster 1913 Edition
Optimism
1.
(Metaph.)
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.
Webster 1828 Edition
Optimism
OP'TIMISM
,Noun.
The true and amiable philosophy of optimism.
A system of strict optimism may be the real system in both cases.