👉 The term "undertenant" is a legal term in property law that refers to someone who has been granted permission or authority to occupy or use a property, but does not have the right to possess it. This could be due to a lack of ownership rights, such as by deed or lease agreement, or through other means, such as purchase or inheritance. In some jurisdictions, the term "undertenant" is used in conjunction with the phrase "tenant," which refers to someone who