Noun: mercilessness mur-si-lus-nus
- Feelings of extreme heartlessness
"His mercilessness in business dealings earned him many enemies";
- cruelty, pitilessness, ruthlessness
- Inhumaneness evidenced by an unwillingness to be kind or forgiving
"His mercilessness towards his debtors earned him a reputation as a ruthless businessman";
- unmercifulness
Type of: coldheartedness, hardheartedness, heartlessness, inhumaneness, inhumanity
Antonym: mercifulness