Lewis Short
(adjective) : fastōsus, a, um, 2. fastus
* Full ofpride, proud, haughty (post-Aug. and rare): moecha,Mart. 10, 13, 7: quid est, fastose?Petr. 131.—Transf., of things: domus, Auct. Pan. ad Pis. 107: garum,Mart. 13, 102, 2.
Charlton T. Lewis, Charles Short, A Latin Dictionary