Ar-Adûnakhôr was the 20th King of Númenor. He opposed the Valar, and thus took his official name in the Adûnaic tongue instead of using the traditional Quenya form Tar-Herunúmen, though a Quenya name was recorded in the official royal scrolls. The name he chose was considered by some as blasphemous in both languages it means "Lord of the West", a title reserved for Manwë, Lord of the Valar.
During his time, the Elven-tongues were no longer used or taught to children, and the ships from Tol Eressëa came rarely. Only those of The Faithful maintained the ancient customs of friendship with the west and welcomed the Eldar, both in secret.
There is some question as to whether Ar-Adûnakhôr succeeded his father, Tar-Ardamin, as king, or his grandfather, Tar-Calmacil, but the numbering of the rulers includes Tar-Ardamin in the count. Specifically, Tar-Ardamin does not appear at all in the Lord of the Rings appendices, but he does appear in the chapter "The Line of Elros" from Unfinished Tales.
Ar-Adûnakhôr ruled for sixty-three years and was succeeded by his son, Ar-Zimrathôn.
|Rulers of Númenor|
Elros Tar-Minyatur | Vardamir Nólimon | Tar-Amandil | Tar-Elendil | Tar-Meneldur | Tar-Aldarion | Tar-Ancalimë | Tar-Anárion | Tar-Súrion | Tar-Telperiën | Tar-Minastir | Tar-Ciryatan | Tar-Atanamir | Tar-Ancalimon | Tar-Telemmaitë | Tar-Vanimeldë | Tar-Anducal (Herucalmo) | Tar-Alcarin | Tar-Calmacil | Tar-Ardamin | Ar-Adûnakhôr | Ar-Zimrathôn | Ar-Sakalthôr | Ar-Gimilzôr | Tar-Palantir | Ar-Pharazôn