The conformation of the title compound, C27H34O, is stabilized by a weak intra-molecular C-H⋯π inter-action. The dihedral angle between the benzene rings is 54.79 (4)°. The adamantane cage consists of three fused cyclo-hexane rings in classical chair conformations, with C-C-C angles in the range 107.75 (10)-111.35 (9)°. Although the mol-ecule contains a hy-droxy group as a conceivable hydrogen-bond donor, this group is sterically hindered by bulky substituents and no hydrogen bonds are observed in the crystal structure.