Something or someone that has deviated from what is considered right, correct, natural, moral, ethical, or its intended function. Examples of perversion would be "perverted justice" or "sexually perverted acts".
A perverted person is also known as a deviant or a sicko. Such a person
will have deviated from a healthy sexuality into acts that
may include one or more of the following: homosexuality, voyeurism, sadism, flashing, masochism, prostitution,
incest, paedophilia, bestiality,
rape, swinging, or some other indecent act.