"Be not disposed" can be replaced by several synonyms such as unready, indisposed and disinclined. These words are used to describe a situation when someone is not prepared, unwilling or not feeling up to do something. Using synonyms can help to add variety and richness to your communication, making it more engaging and interesting for your audience. It is important to choose your words carefully to ensure that you convey your message accurately and effectively. No matter which synonym you choose, the key is to use it appropriately to convey the intended meaning of your message.