The word "trans acts" refers to actions or behavior that involve crossing from one gender identity to another. The antonyms for this term would be actions or behavior that are considered conventional or traditional within a given society's gender norms. These could include conforming to societal expectations of gender roles, adhering to binary gender identities, and avoiding activities or expressions that challenge traditional gender expectations. Other antonyms might include engaging in activities or behaviors that are considered "cisgender," or adhering to the gender identity you were assigned at birth. In general, antonyms for trans acts privilege prescribed gender norms over expressions of gender identity that fall outside of these norms.