If your dad hits you when you are an adult, the situation may be considered assault or battery, depending on the laws in your jurisdiction and the specific circumstances of the incident.
Assault and battery laws vary from country to country and from state to state, so it's essential to consult with a legal professional who is familiar with the laws in your specific area. In many places, physical violence against another person, regardless of their relationship, can be considered a criminal offense.
If you find yourself in such a situation, it's crucial to prioritize your safety and well-being. Consider reaching out to a local domestic violence support organization or legal aid service for guidance and assistance.
Remember, consulting with a legal professional will provide you with the most accurate and relevant information for your specific situation.