Not necessarily the actual word as such. Mostly people are described as chasing after other gods. What about no gods?
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There is a lot of talk about Godless men, which would be someone that likely doesn't believe in God or fear God (or any gods) -- usually one or the other.
Psalms 14:1 - The fool has said in his heart, "There is no God."
Psalms 10:4 - The wicked, in the haughtiness of his countenance, does not seek Him. All his thoughts are, "There is no God."
Psalm 36:1 - Transgression speaks to the ungodly within his heart; There is no fear of God before his eyes.