indecorabiliter

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

in-dĕcŏrābĭlĭter, adv. [2. in-decoro],

unbecomingly : alienos alunt, Att. ap. Charis. 182 P. (Trag. Fragm. v. 258 Rib.).