Yes this is a real word, it means that something is not subject to being taken away from or given away by the possessor.
person a: what inalienable?
person b: it means that someone can't take something away from you, i.e. the freedom of speach
person b: it means that someone can't take something away from you, i.e. the freedom of speach
by Blair Oneal March 24, 2020