Emasculating refers to the act of depriving a man of his masculinity, which is a very derogatory term. The term is often used to put men down or express a lack of respect for their masculinity. There are a number of synonyms for emasculating, which are more polite and less offensive. Some of these synonyms include castrating, neutering, gelding, disempowering, debasing, undermining, and weakening. These synonyms are more appropriate in situations where one wants to express a loss of power or masculinity, such as in workplace environments or personal relationships. However, it is important to use these words carefully, as they can still be perceived as insulting.