δι' ἐρημίας πολεμίων πορευόμενος → he marched on without finding any enemy, his route lay through a country bare of enemies
adj.
P. and V. ἀσαφής, ἄδηλος, V. δυσμαθής, ἄσημος, ἀξύμβλητος, δυστόπαστος, δυσεύρετος, ψελλός.
