'Worthless' in the Bible

Surely He knows which people are worthless.If He sees iniquity, will He not take note of it?

But you coat the truth with lies;you are all worthless doctors.

Let him not put trust in worthless things, being led astray,for what he gets in exchange will prove worthless.

If this is not true, then who can prove me a liarand show that my speech is worthless?

who says to a king, “Worthless man!”and to nobles, “Wicked men!”?