The word "cattle thief" refers to a person who steals cattle. If we were to think of antonyms for this word, we would need to look at terms that describe people who do the opposite of stealing cattle. One such antonym could be someone who owns cattle, who takes care of them and ensures that they're well-fed and healthy. This person could be referred to as a cattle farmer or rancher. Another antonym could be someone who protects cattle from thieves, such as a law enforcement officer or security guard. Overall, by thinking about the opposite of cattle theft, we can understand the important roles that farmers, ranchers, and law enforcement officials play in our communities.