pa·la·tial 
(pə-lāshəl)
(pə-lāshəl)adj.
1. Of or suitable for a palace: palatial furnishings.
2. Of the nature of a palace, as in spaciousness or ornateness: a palatial yacht.
[From Latin Palātium, imperial residence; see PALACE.]
pa·latial·ly adv.
pa·latial·ness n.