Definition and *usage* are 2 different things. While the word "eventually" *means* sooner or later, and the word "possibly" *means* maybe not at all, I have observed that many people will *use* the word eventually even when they are not sure something will happen, or because they want to preserve uncertainty in the mind of another person. Likewise, I have seen "possibly" used by people even when the truth is DEFINITELY -- - that's just being coy --