cruelly
Definitions
In a way that causes pain or suffering to others.
In a manner that is willfully or sadistically harsh.
Examples
The villain laughed cruelly as he watched the hero struggle to escape.
She was treated cruelly by her peers, which left a lasting impact on her self-esteem.
Synonyms
viciously brutally mercilessly savagely heartlessly ruthlessly harshly
Antonyms
kindly gently compassionately tenderly humanely benevolently mercifully