The term "wrong'uns" is often used to describe people who are deceitful or dishonest. Depending on the context, there are several different synonyms that can be used in its place. For example, a person who is considered a "wrong'un" might also be described as a fraud, a crook, or a con artist. Other words that might be used to describe dishonest or untrustworthy people include charlatan, imposter, swindler, or scammer. Similarly, if someone is behaving badly or doing something that is considered wrong, they might also be described as behaving improperly, breaking the rules, or acting immorally. Overall, there are many different words that can be used in place of "wrong'uns" depending on the context and the specific situation.