The antonyms for the word "pre-served" include phrases like spoiled, ruined, perished, wasted, and destroyed. These words refer to something that has not been stored or maintained properly, causing it to become unusable or ineffective. The opposite of preservation can also be to neglect or ignore, indicating that something was not taken care of or looked after properly. If something is not pre-served, it may also be described as fresh, new, or original, implying that it has not yet undergone any preservation or maintenance. Overall, the antonyms for "pre-served" suggest a lack of care or attention, leading to deterioration or loss of value.