IPA: /ˈboʊtləs/
KK: /ˈboʊtləs/
Describing something that does not use bolts as fasteners.
The new design is boltless, making assembly much easier.
Boltless → It is formed from "bolt" (from Old English "bolt", meaning a type of fastener) and "-less" (meaning without). The word "boltless" means without bolts or fasteners.
Think of being 'without' ('-less') a 'fastener' ('bolt') — that's why boltless means lacking bolts.