Adjective
optimistic -
expecting the best in this best of all possible worlds; "in an optimistic mood" ; "optimistic plans" ; "took an optimistic view"
pessimistic expecting the worst possible outcome
hopeful having or manifesting hope; "a line of people hopeful of obtaining tickets" ; "found a hopeful way of attacking the problem"
positive having a positive charge; "protons are positive"
bullish expecting a rise in prices
pollyannaish ,
upbeat ,
cheerful being full of or promoting cheer; having or showing good spirits; "her cheerful nature" ; "a cheerful greeting" ; "a cheerful room" ; "as cheerful as anyone confined to a hospital bed could be"
rose-colored ,
rosy having a rose color
starry-eyed unrealistically or naively optimistic; "a starry-eyed reformer" ; "starry-eyed idealism"
Optimistic -
expecting the best; "an affirmative outlook"
affirmative ,
optimistic
positive having a positive charge; "protons are positive"