Definition of ruthlessness in English:
 ruthlessness
noun ˈruːθləsnəsˈruθləsnəs
The quality of lacking pity or compassion for others.
 the real-world ruthlessness of business
 Example sentencesExamples
-  The effects attack the imagination with unexpected ruthlessness.
 -  He fought the Indian wars with a ruthlessness that bordered on the maniacal.
 -  His willingness to meld the ruthlessness of a Hollywood mogul with the power of the Internet is unique.
 -  With her strong sense of duty, she was never able to have the ruthlessness a writer needs.
 -  It is a worthwhile reminder of the sheer breathtaking ruthlessness of many of their acts.
 -  His ruthlessness was the satirical element of that film.
 -  As Phil the agent, he made the unlikely combination of ruthlessness and affability seem plausible.
 -  She built a reputation for ruthlessness in her determination to get the very best deal for her pension fund clients.
 -  He saw in her a calculated ruthlessness that the clan had previously been lacking.
 -  The business of photo editing calls for a certain ruthlessness.
 
  Definition of ruthlessness in US English:
 ruthlessness
nounˈruθləsnəsˈro͞oTHləsnəs
The quality of lacking pity or compassion for others.
 the real-world ruthlessness of business
 Example sentencesExamples
-  The effects attack the imagination with unexpected ruthlessness.
 -  She built a reputation for ruthlessness in her determination to get the very best deal for her pension fund clients.
 -  As Phil the agent, he made the unlikely combination of ruthlessness and affability seem plausible.
 -  His willingness to meld the ruthlessness of a Hollywood mogul with the power of the Internet is unique.
 -  He fought the Indian wars with a ruthlessness that bordered on the maniacal.
 -  He saw in her a calculated ruthlessness that the clan had previously been lacking.
 -  It is a worthwhile reminder of the sheer breathtaking ruthlessness of many of their acts.
 -  With her strong sense of duty, she was never able to have the ruthlessness a writer needs.
 -  His ruthlessness was the satirical element of that film.
 -  The business of photo editing calls for a certain ruthlessness.