Verses with the word unwalled in the Old Testament (3 verses):

Deuteronomy 3:5
All these cities were fenced with high walls, gates, and bars; beside unwalled towns a great many.

Esther 9:19
Therefore the Jews of the villages, that dwelt in the unwalled towns, made the fourteenth day of the month Adar a day of gladness and feasting, and a good day, and of sending portions one to another.

Ezekiel 38:11
And thou shalt say, I will go up to the land of unwalled villages; I will go to them that are at rest, that dwell safely, all of them dwelling without walls, and having neither bars nor gates,