Turnons refer to things that arouse or excite a person's interest, passion, or desire. Antonyms for turnons would, therefore, describe things that cause disinterest, apathy, or even aversion. Some antonyms for turnons include turnoffs, repulsions, repugnancies, and aversions. Turnoffs are things that are unattractive, repulsive, or boring to someone. Repulsions refer to things that are offensive, nauseating, or intolerable. Repugnancies describe things that are objectionable, abhorrent, or offensive. And finally, aversions are things that are disliked or avoided by someone. Understanding the different antonyms for turnons is important because it helps us identify and avoid things that might be a turnoff or repulsive to someone.