Why isn't Adam regarded as a prophet even though he directly communicated with God?

In the book of Genesis, Adam speaks directly with God—receiving commands, instructions, and even judgments. This kind of divine communication is often associated with the role of a prophet throughout the Bible. Yet, Adam is not explicitly called a prophet in Scripture, nor is he commonly regarded as one in most Christian traditions. Why is that the case? Does the biblical or theological definition of a prophet involve more than just direct communication with God—such as delivering God's message to others, foretelling future events, or leading a covenant community? I’d appreciate perspectives from Scripture, early Church Fathers, and major Christian traditions.