Here are some other options, depending on the context:
* "innamorato/a" - This literally means "in love" and is more formal than "amante".
* "fidanzato/a" - This means "fiancé/fiancée" and is used for someone you are engaged to.
* "amico/a" - This means "friend" but can sometimes be used as a more informal way to say "lover".
* "compagno/a" - This means "partner" and is often used for someone you live with.
The best word to use will depend on the specific context. For example, if you are talking about a romantic relationship, "amante" is usually the best choice. However, if you are talking about a more casual relationship, "amico/a" might be more appropriate.