Choose the perfect synonym or antonym for the word

Thankfully

/ˈθæŋkfəli/

In a grateful or relieved manner

Synonyms:

Victoria drank thankfully.She is nice, isn't she?' said Anne thankfully.Thankfully they don't notice us.

Derived from the adjective thankful + the adverbial suffix -ly; thankful originates from Old English þancful, meaning full of thanks.

8 mentions per 1 million words

Moderate

Hint: Frequency according to COCA