say it: ahp-tuh-MI-stik
optimistic is an adjective meaning "expecting the best in this best of all possible worlds". It carries 2 recorded senses.
expecting the best in this best of all possible worlds
“in an optimistic mood”
“optimistic plans”
“took an optimistic view”
expecting the best
“an affirmative outlook”
Definitions, synonyms and semantic relations for optimistic come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.