IPA: /ˈmeɪtləs/
KK: /ˈmeɪtləs/
Describing something that does not have a partner or companion.
The mateless bird called out for a mate.
Mateless → It is formed from "mate" (from Old English *gemetta*, meaning companion or partner) and "-less" (meaning without). The word "mateless" means without a mate or companion.
Think of being 'without' ('-less') a 'companion' ('mate') — that's what mateless means.