2 verses have
liar
in Edition Clear Qur'an by Talal Itani / Hud (Hud)

11:27The notables who disbelieved among his people said, “We see in you nothing but a man like us, and we see that only the worst among us have followed you, those of immature judgment. And we see that you have no advantage over us. In fact, we think you are liars.”

11:93“O my people, do as you may, and so will I. You will know to whom will come a punishment that will shame him, and who is a liar. So look out; I am on the lookout with you.”