Antonyms of noun pessimism

2 senses of pessimism

Sense 1
pessimism -- (the feeling that things will turn out badly)
       Antonym of optimism (Sense 1)
      => optimism -- (the optimistic feeling that all is going to turn out well)

Sense 2
pessimism -- (a general disposition to look on the dark side and to expect the worst in all things)
       Antonym of optimism (Sense 2)
      => optimism -- (a general disposition to expect the best in all things)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun pessimism

2 senses of pessimism

Sense 1
pessimism -- (the feeling that things will turn out badly)
       => despair -- (the feeling that everything is wrong and nothing will turn out well; "they moaned in despair and dismay"; "one harsh word would send her into the depths of despair")

Sense 2
pessimism -- (a general disposition to look on the dark side and to expect the worst in all things)
       => disposition, temperament -- (your usual mood; "he has a happy disposition")