The antonyms for the phrase "show fruit" could include "hide fruit," "conceal fruit," or "keep fruit a secret." To "show fruit" typically implies revealing the positive results of one's efforts, whereas the antonyms suggest keeping those results hidden. Alternatively, antonyms for "fruit" in general could include "vegetable," "bread," or "meat." These terms describe different types of food that may not necessarily yield the same benefits as fruit. While fruit is rich in nutrients, vitamins, and antioxidants, other types of food may provide carbohydrates, protein, or fats that the body needs to function properly.