pa·la·tial \pəˈlāshəl\adjective Etymology: Latin palatium palace + English -al — more at palace 1.: of, relating to, or being a palace < a palatial residence > 2.: suitable for or used in a palace < palatial furnishings > 3.: magnificent, luxurious < a palatial yacht > • pa·la·tial·ly\-shəlē, -li\adverb • pa·la·tial·ness\-lnə̇s\noun-es