'Unrighteous' in the Bible

Now this man acquired a field with his unrighteous wages. He fell headfirst and burst open in the middle, and all his insides spilled out.

and Paul being about to open his mouth, Gallio said unto the Jews, 'If, indeed, then, it was anything unrighteous, or an act of wicked profligacy, O Jews, according to reason I had borne with you,

And I have a hope in God, which these men themselves also accept, that there is going to be a resurrection, both of the righteous and the unrighteous.

for if indeed I am unrighteous, and anything worthy of death have done, I deprecate not to die; and if there is none of the things of which these accuse me, no one is able to make a favour of me to them; to Caesar I appeal!'