"Fin state" does not seem to be a commonly used phrase in the English language, therefore, it is difficult to provide relevant antonyms for it. However, if we were to break down the two words separately, an antonym for "fin" could be "tail" or "foot," while an antonym for "state" could be "chaos," "disarray," or "confusion." Alternatively, if we were to explore a possible meaning for "fin state," it could perhaps refer to the financial state of a business or individual. In this case, antonyms could be "prosperity," "wealth," or "abundance.