1. That which can not be moved.
2. Lands and things adherent thereto by nature, as trees; by the hand of man, as buildings and their accessories; by their destination, as seeds, plants, manure, etc.; or by the objects to which they are applied, as servitudes.
1. Incapable of being moved; firmly fixed; fast; used of material things; as, an immovable foundatin. Immovable, infixed, and frozen round. (Milton)
2. Steadfast; fixed; unalterable; unchangeable; used of the mind or will; as, an immovable purpose, or a man who remain immovable.
3. Not capable of being affected or moved in feeling or by sympathy; unimpressible; impassive.
4. Not liable to be removed; permanent in Place or tenure; fixed; as, an immovable estate.
(Science: medicine) see immovable, immovable apparatus, feasts which occur on a certain day of the year and do not depend on the date of Easter; as, christmas, the epiphany, etc.