Allodial, which refers to property not subject to any feudal duties, is an uncommon word with limited synonyms. However, some words that could be used instead of allodial include freehold, which describes property owned outright without any obligations to a lord or monarch; independent, which denotes something not reliant on or controlled by another; and self-governing, which suggests the ability to operate without external influence. Allodial property rights are often contrasted with feudal property rights, which involve a hierarchy of obligations between lords and tenants, and can also be described as non-feudal or non-vassal, depending on the context.