Antifeminism is broadly defined as ideological opposition to some or all forms of feminism. This opposition has taken various forms across time and cultures. For example, antifeminists in the late 1800s and early 1900s resisted women's suffrage, while antifeminists in the late 20th century opposed the Equal Rights Amendment. Antifeminism may be motivated by the belief that feminist theories of patriarchy and disadvantages suffered by women in society are incorrect or exaggerated, that feminism as a movement encourages misandry and seeks to harm or oppress men, or by general hostility towards women's rights.