mercilessness characterized by a lack of pity
feelings of extreme heartlessness
- Others speak of utter devotion to work, combined with a degree of ruthlessness.
- Oh, yes, he had a streak of ruthlessness that rivaled Peter's, but he had the decency to be appalled by his own brutality.
- Ruthlessness is the kindness of the wise.
- She doesn't have the ruthlessness required to succeed in business.
- ruthless 残忍的