Tar-Palantir (SA 3035 - SA 3255, r. SA 3177 - SA 3255) was the 24th King of Númenor. His Adûnaic name was Ar-Inziladûn, which means "Flower of the West". Tar-Palantir repented and sought to amend the ways of the prior kings, although it was already too late.
Tar-Palantir's father, Ar-Gimilzôr, whom he succeeded, was an opponent of the Valar and the Elves. Inzilbêth, the queen, taught her son to be an admirer of the Elves.
Ar-Inziladun took power during a time of great darkness in Númenor; ever since Tar-Atanamir, many king had spoken against the Valar and questioned the policies laid before them. Tar-Palantir, however, sought to repent the actions of his predecessors; he once again tended to the White Tree, and followed the ancient practices. However, there was no response from the Valar, and Tol Eressëa could not be seen from the tower of Tar-Minastir.
His name in Quenya was written in the Scrolls, as it was with the ancient practices. Palantir in Quenya means "far sighted," as Palantir indeed saw the destruction that would come to Númenor if it kept going down the path of disobedience to the Valar. His daughter, Tar-Míriel was his successor and would have followed his policies, but her rightful place as Queen of Númenor was usurped by her husband, Ar-Pharazôn.