Lewis Short
(adjective) : in-culpābĭlis, e
* Unblamable, blameless (post-class.): numen,Prud. Apoth. 1015: mores,Avien. Arat. 28: lapis,i. e. faultless, without a flaw,Sol. 30. —Adv.: inculpābĭlĭter, without blame, Cassiod. Var. 5, 27; 11, 18 sq.
Charlton T. Lewis, Charles Short, A Latin Dictionary