immovable

adj

1. incapable of being physically moved; fixed
2. steadfast in purpose or intention; unalterable, unyielding

   “I pleaded with him not to resign, but he was immovable.”

3. not capable of being affected or moved in feeling; impassive

   “How much happier is he […]who ent'ring on himself remains immovable, and smiles at the madness of the Dance”

4. not liable to be removed; permanent in place or tenure; fixed

   “an immovable estate”

noun

1. Something immovable.
2. (in-plural)Something immovable.