The phrase "extra legal" typically refers to actions or activities that are outside the legal system or beyond the scope of the law. Some possible antonyms for this term might include "legal," "lawful," "authorized," "regulated," or "compliant." These words indicate that the actions being taken are in accordance with established rules, guidelines, or laws. Other antonyms for "extra legal" might include "ethical," "moral," or "just," since these terms suggest that actions are being taken for reasons beyond mere legality, such as a sense of right and wrong or a commitment to fairness and justice. Regardless of the specific antonym used, the term "extra legal" can be better understood in terms of its opposite or opposite meanings.