The term "erotogenic" refers to something that is sexually arousing or stimulating. Its straightforward antonym is "non-erotogenic," meaning something that does not produce sexual arousal or is not related to sexuality. However, there are other possible antonyms, such as "repulsive," "disgusting," or "virginity-inducing," emphasizing the lack of sexual appeal or the opposite effect altogether. "Unappealing," "asexual," or "unprovocative" could also be used as antonyms for "erotogenic," all suggesting a lack of sexual interest or attraction. It's important to note that antonyms for this term may vary depending on context, intent, and the specific nuances of the word in different contexts.