Immovable
Part of speech: noun
Definition: That which can not be moved; something which is immovable.
Part of speech: adjective
Definition: Incapable of being moved; firmly fixed; fast; -- used of material things; as, an immovable foundation. Steadfast; fixed; unalterable; unchangeable; -- used of the mind or will; as, an immovable purpose, or a man who remain immovable. Not capable of being affected or moved in feeling or by sympathy; unimpressible; impassive.
Example sentence: I actually think that self-interest is overrated as an all-purpose guide to political motive. It leaves out something at least as powerful and immovable - individual psychology.
Immoveable
Part of speech: adjective
Definition: Incapable of being physically moved; fixed