The term "wrack up" typically connotes a negative connotation, referring to something that has been damaged or ruined. Antonyms, or words with opposite meanings, that can be used in place of "wrack up" include terms such as "restore," "repair," "fix," or "revitalize." These words have a positive connotation and suggest that something has been improved or brought back to its original state. Other antonyms may include "protect," "preserve," or "maintain," which suggest that something has been kept safe and free from harm. When choosing words to describe a situation, consider the connotation and choose words that accurately reflect the intended meaning.