Most unfixable is a phrase that describes something that is impossible to repair or remedy. There are several synonyms for this phrase that can be used to express the same meaning. One of the synonyms is irreparable, which refers to something that cannot be restored or fixed to its original state. Another synonym is irrecoverable, which describes something that cannot be retrieved or recovered. Another way to express the idea of most unfixable is to use the phrase beyond repair, which means that something is so damaged or broken that it cannot be fixed or remedied. Lastly, another synonym is unsalvageable, which means that something cannot be rescued or saved from destruction.