'Worthless' in the Bible

But certain worthless fellows said, How shall this man save us? And they despised him, and brought him no present. But he held his peace.

Now therefore know and consider what thou wilt do; for evil is determined against our master, and against all his house: for he is such a worthless fellow, that one cannot speak to him.

Let not my lord, I pray thee, regard this worthless fellow, even Nabal; for as his name is, so is he; Nabal is his name, and folly is with him: but I thy handmaid saw not the young men of my lord, whom thou didst send.