1.AdjectiveNot subject to being alienated, that is, surrendered, taken away, or transferred to another.
"An inalienable right is a right that cannot be given away nor taken away."
2.AdjectiveOf or pertaining to a noun belonging to a special class in which the possessive construction differs from the norm, especially for particular familial relationships and body parts, regarding permanence.
"Just as some languages have a "be" for permanent states (which are essential) and a different "be" for temporary states (which are incidental), some languages have a "have" for unchangeable possession (which is inalienable) and a different "have" for changeable possession (which is alienable)."