IPA: /ˈfɛnsləs/
KK: /ˈfɛns.ləs/
Not surrounded or protected by a fence; open and exposed.
The fenceless field allowed the animals to roam freely.
Fenceless → It is formed from "fence" (from Old French *fens*, meaning a barrier or enclosure) and "-less" (meaning without). The word "fenceless" means without a fence or barrier, indicating openness or vulnerability.
Think of a place that is 'without' ('-less') a 'barrier' ('fence') — that's why fenceless means open and unprotected.