Choose the perfect synonym or antonym for the word

Optimistic

/ˌɒptəmɪstɪk/

Having a hopeful and positive outlook about the future or success of something.

Synonyms:

She is optimistic about her future.Laura stayed optimistic despite the bad news.

Derived from the Latin word optimus, meaning best, with the suffix -istic added in the 18th century to form the English word.

13 mentions per 1 million words

Moderate

Hint: Frequency according to COCA