Choose the perfect synonym or antonym for the word

Hopefully

/ˈhəʊpfəli/

Used to express a wish or desire in a positive way, meaning that something is expected to happen.

Synonyms:

She picked it up hopefully.Victoria said hopefully.Hopefully it worked."

from the word hope plus the adverbial suffix -fully, first used in this sense in the 1930s with the meaning it is to be hoped.

27 mentions per 1 million words

Often

Hint: Frequency according to COCA