De-sexualizing refers to the process of removing or lessening sexual connotations or characteristics. Antonyms for de-sexualizing could include sexualizing or sensualizing, which means to increase or intensify sexual attributes. Another antonym could be fetishizing, which is the act of making an object or quality into a fetish, or an object of intense desire or obsession. Other antonyms could be romanticizing or glorifying, which involves portraying sexual or romantic experiences in a positive or idealized light. Conversely, a more negative antonym for de-sexualizing would be vulgarizing, which involves making sexual content or behavior crass or obscene.