That which is inalienable cannot be bought, sold, or transferred from one individual to another. The personal rights to life and liberty guaranteed by the Constitution of the United States are inalienable. Similarly, various types of property are inalienable, such as rivers, streams, and highways. You cannot transfer ownership of the Mississippi River, for example. Neither can you transfer the right to own property or to your own life; you cannot sell yourself into slavery (or others sell you into it), and these rights are not determined from legal rights but are natural (derived from nature) and thus God-given. The amendments represent legal rights; contractual rights that are given by nature of the social contract, yet the inalienable rights take precedence.
No, the three inalienable rights are those of Life, Liberty, and the Pursuit of Happiness. Unfortunately, as evidenced by abortion, the first inalienable right is alienated all the time. But anyway, the amendments are corrections made to the constitution, the Bill of Rights, the first ten amendments, are rights given to the people, that the government is not supposed to be allowed to infringe upon. Of course, they do it anyway, but that's beside the point here.