"De predates" is not a commonly used word, therefore, finding its antonyms can be tricky. However, if we break down the word into its parts, we can identify possible antonyms. "De" can mean "reverse" or "undo," while "predates" means "precede" or "come before." Therefore, an antonym for "de predates" can be "postdates," meaning to come after or follow. Other antonyms for "de predates" could be "advance" or "progress," as they denote moving forward in time rather than reversing it. Overall, while the word "de predates" may not have a clear-cut antonym, breaking it down into its parts can help us identify possible opposites.