The term "most perished" typically refers to the majority of something being destroyed or lost. Antonyms for this phrase include words like "saved", "preserved", and "unharmed". These words describe a state in which the majority or entirety of something has been protected or saved from harm, rather than being destroyed. Other antonyms for "most perished" might include phrases like "largely intact", "mostly unscathed", or "minimally damaged". The choice of antonyms for this phrase will depend on the context in which it is used and the specific meaning that the speaker or writer intends to convey.