IPA: /ʌnˈfɛnst/
KK: /ʌnˈfɛnst/
Not surrounded by a fence, allowing animals or people to move freely in a larger area.
The cattle grazed in the unfenced pasture.
Unfenced → It is formed from "un-" (meaning not) and "fenced" (from Old French *fencier*, meaning to enclose or defend). The word "unfenced" means not enclosed or defended by a fence.
Think of 'not' ('un-') having a 'fence' around it — that's why unfenced means there is no fence enclosing something.