Sociosexual refers to a person's willingness to engage in sexual activity without the need for a deep emotional connection. This term is often used in a scientific or clinical context, but there are many synonyms that can be used in everyday conversation. Some possible synonyms for sociosexual include sexually liberated, sexually open, sexually permissive, sexually adventurous, or sexually free. Other terms that may be used to describe someone with a more unrestricted attitude toward sex include sexually promiscuous, sexually uninhibited, or sexually non-monogamous. Ultimately, the best synonym will depend on the context and the audience, but these options offer a wide range of possibilities.