The antonyms for the term "soft core" are hard core or explicit. Hard core is used to refer to something that is intense, extreme, or explicit in its nature. When it comes to media, hard core often refers to explicit pornography. On the other hand, explicit means something that is very clear, specific, or detailed. In terms of media, explicit can refer to graphic violence, gore or sex scenes. Both hard core and explicit content are usually meant for adults only and are often censored or restricted. It is important to be aware of these antonyms and to understand the differences between them when consuming or creating media content.