Inalienable (adjective)

1. Not able to be transferred to another's ownership or control.
2. Not able to be taken away or denied.
3. Not subject to being sold or given away.

Origin:

From the latin in- (not) + alienus (of another), from alius (other) + -able (an adjective suffix).

Examples:

1. The Constitution recognizes certain inalienable rights, such as freedom of speech.
2. The land had been in the family for generations and was considered inalienable.
3. The right to life, liberty and the pursuit of happiness are inalienable rights.
4. The inalienable nature of the cultural heritage was emphasized in the UNESCO convention.
5. The inalienable possession of the company was protected by a legal contract.