Fore-shadower is a word that means someone or something that predicts or anticipates a future event. There are several synonyms that can be used in place of fore-shadower. The first one is prophesier, which is someone who predicts the future based on divine revelation. Another synonym is seer, which is someone who has great insight and can see into the future, often through mystical means. Herald is another synonym, which refers to someone who announces or proclaims something that is about to happen. Predictor, harbinger, and augur are other synonyms that can be used in place of fore-shadower, depending on the context and tone of the sentence.