Lewis Short
(adjective) : convīvālis (access. form convīvĭā-lis, Curt. 6, 2, 6 Zumpt
* N. cr.; as var. lect. in Liv. 39, 6, 8, and Macr. S. 2, 1), e, convivium, of or pertaining to a feast, festal, convivial (rare; not ante-Aug.): oblectamenta ludionum,Liv. 39, 6, 8: fabulae,Tac. A. 6, 5: ludi,Curt. 5, 1, 37; 8, 4, 29; 8, 6, 14: sermones,Macr. S. 1, 1: carmen,Prud. Hamart. 317: vestis,Sen. Contr. 4, 25 al.—No comp. or sup.
Charlton T. Lewis, Charles Short, A Latin Dictionary