1. Another word for Callously: heartlessly, coldly, harshly, brutally, insensitively Collins English Thesaurus

2. Synonyms for Callously include brutally, coldly, hardheartedly, harshly, heartlessly, indifferently, insensitively, obdurately, unfeelingly and carelessly

3. Callously adverb heartlessly, coldly, harshly, brutally, insensitively, obdurately, unfeelingly, soullessly, hardheartedly He is accused of Callously ill-treating his wife

4. 8 We ignore the down-at-heel and dissolute as we heartlessly window-shop the boulevards they stumble down.

5. Cruelly, fiercely, savagely, ruthlessly, viciously, mercilessly, ferociously, remorselessly, in cold blood, callously, murderously, pitilessly, heartlessly, inhumanly, barbarously, brutishly, barbarically, hardheartedly Her real parents had been Brutally murdered.

6. If their fasting was of a real kind, an abstention from ordinarily rightful things, why were they at the same time heartlessly driving their “toilers,” their own brothers, to work, thus heaping oppressive affliction upon them?