The word "Miasmatical" is often used to describe something that is related to or caused by miasma, which refers to a noxious or unpleasant smell or vapor. Synonyms for "miasmatical" include "miasmic," "foul," "putrid," "noxious," and "offensive." These words all convey a sense of unpleasantness, decay, and pollution. Other possible synonyms for "miasmatical" might include words like "contaminated," "polluted," "toxic," or "unhealthy." All of these words highlight the negative effects that are associated with miasma, whether these effects are physical, emotional, or social in nature. Ultimately, no matter what word you choose, "miasmatical" represents a clear warning of danger or harm.