'Ruthless' in the Bible

I have seen ruthless evil men growing in influence, like a green tree grows in its native soil.

For foreigners attack me; ruthless men, who do not respect God, seek my life. (Selah)

O God, arrogant men attack me; a gang of ruthless men, who do not respect you, seek my life.

A generous woman gains honor, and ruthless men seize wealth.

Look, I am about to empower the Babylonians, that ruthless and greedy nation. They sweep across the surface of the earth, seizing dwelling places that do not belong to them.