The word "manhater" is often used to describe a woman who dislikes or holds prejudiced feelings towards men. However, this term can have negative connotations and can be seen as sexist. Alternative synonyms that can be used include "misandrist," "male antagonist," "anti-male," or "anti-patriarchy." These words can be used to describe someone who opposes or stands against the patriarchal structures that benefit men at the expense of women. It is important to use language that accurately describes the feelings or opinions a person holds without perpetuating harmful stereotypes or biases.