English Antonyms Practice Test 10

Underhand : acting or done in a secret or dishonest way.
Cruel : wilfully causing pain or suffering to others, or feeling no concern about it.
Quiet : making little or no noise.
Secret : not known or seen or not meant to be known or seen by others.
Open : not concealing one's thoughts or feelings; frank and communicative.

Antonym of Underhand is Open