Putresces is a verb that refers to the process of decay or rotting of organic matter, particularly due to the action of bacteria. However, there are several antonyms for this word that represent opposite meaning, i.e., they indicate preservation or freshness. Some of the antonyms for putresces are "preserve," "conserve," "maintain," "keep," "store," "freeze," "refrigerate," "sanitize," "sterilize," etc. These words suggest that something is being protected and saved from decomposition or deterioration. For example, we preserve fruits and vegetables to keep them fresh for a longer time, while we sterilize medical equipment to prevent contamination. Therefore, while the word "putresces" has a negative connotation, its antonyms have positive and beneficial meanings.