Using derogatory terms to describe people based on their sexual behavior, preferences, or orientations is insensitive and should be avoided. Rather than using the term "sexual pervert," which is offensive and stigmatizes people, it is better to use more neutral language that focuses on behavior without being judgmental. Some synonyms for "sexual pervert" include "sexual deviant," "sexual offender," "sexual predator," "sexual abuser," or "sexual offender." However, these terms should be used with caution as they still carry negative connotations and can contribute to further stigmatizing those who engage in non-normative sexual activities or behaviors.