Teratic is a rarely used word that relates to monstrous or abnormal things. For anyone looking for synonyms for this word, there are a few options to consider. One possible option is the word aberrant, which refers to something that deviates from the norm. Another suitable synonym might be anomalous, which means something that is unusual or atypical. Monstrous can be another synonym, as it refers to something that is horrid or grotesque. Finally, the word unnatural can also be used in place of teratic, since it refers to something that goes against natural order or law. Overall, there are a few different synonyms that can be used to replace the word teratic, depending on the context and the intended meaning.