The antonyms for the phrase "wert business" would be related to leisure or relaxation, such as recreation, vacation, pleasure, enjoyment, or pastime. These words represent activities that are done for personal fulfillment or entertainment, rather than for work or profit. Another way to express the opposite of "wert business" is to use the term "unemployment," which implies a lack of work or occupation. Some related terms to "unemployment" might include idleness, boredom, or inactivity. Regardless of the antonym used, the intent is clear: to express the opposite of being fully engaged in work or industry.