What term describes a person confined to a chair?

The term "chairfast" specifically refers to a person who is confined to a chair, typically due to medical or physical conditions that limit their mobility. This term highlights the distinction from being bedridden, where an individual is confined to bed, emphasizing that the person in question can still sit in a chair but cannot move about independently.

In contrast, terms like "ambulatory" and "mobile" describe individuals who are capable of moving around without assistance. These terms would not apply to someone who is chairfast, as they indicate a level of mobility that a chairfast individual does not possess.