The slaves were 'ruthlessly' abused by their owners.
The journalist was 'ruthless' in his criticism.
a 'ruthless' killer
(..) because I'm the only person outside the theater! I love that outfit. You look so sexy in that. You know that I love this movie. If a prostitute and a ruthless businessman can fall in love, then anyone can. I know this means a lot to you, which means it means a lot to me. (..)2011 Friends with Benefits