The phrase "subjects to loss" implies that there is a risk of losing something. To describe the opposite of this, one could use the antonyms "protected from loss," "secure," or "immunized against loss." These terms suggest safety and a lack of vulnerability to potential losses. Additionally, other antonyms such as "benefitting from gain," "enjoying increased wealth," or "profiting" could also be used to describe a situation where there is no risk of loss and instead, a sense of gain and stability. Overall, antonyms for "subjects to loss" convey security, safety, and stability.