The declaration of independence uses the phrase "inalienable" to describe

The word inalienable in the Declaration of Independence is applied to the word rights. Every American citizen is given the basic rights and freedoms that can't be taken.

Inalienable is an adjective that refers to something that cannot be taken away from you. Here he is talking about rights, that cannot be taken away from you. Such rights, he claims, are life, liberty, and the pursuit of happiness. They are inalienable meaning that no one in the world can make them alien to you.