In the odyssey who was most likely the antagonist?

In "The Odyssey," the primary antagonist is often considered to be Poseidon, the god of the sea. He harbors a grudge against Odysseus for blinding his son, the Cyclops Polyphemus, and actively seeks to thwart Odysseus's journey home to Ithaca. While other characters, such as the suitors in Odysseus's household, also pose challenges, Poseidon's divine interference is a central obstacle throughout the epic.