immūnītus (inm-), a, um, adj. [2. in-munitus],
unfortified , undefended (rare but class.): oppida castellaque, Liv. 22, 11, 4: Sparte, Ov. M. 10, 169: inermes atque immuniti abscondimus, Ap. Met. 8, 5, 2; via, i. e. not properly made , impassable , Cic. Caecin. 19, 54.