Lewis Short
(adjective) : imprÅtectus (inpr-), a, um, 2. in-protectus
* Uncovered, undefended, unprotected (post-class.): ne improtectum Mesopotamiae relinqueret latus,Amm. 21, 13; 31, 13: imparatus improtectusque,Gell. 13, 27 fin.; 7, 3, 44.
Charlton T. Lewis, Charles Short, A Latin Dictionary