callously
Definitions
In a manner that shows an insensitive and cruel disregard for others.
Without sympathy or emotional concern for the feelings or suffering of others.
Examples
He callously ignored the pleas of the struggling family, refusing to offer any assistance.
The manager callously dismissed the employee's concerns about the unsafe working conditions.
Synonyms
heartlessly cruelly coldly insensitively ruthlessly pitilessly uncaringly
Antonyms
compassionately kindly tenderly warmly sympathetically mercifully affectionately