IPA: /ˈmeɪləs/
KK: /ˈmeɪləs/
Not having mail or armor.
The mailless knight felt vulnerable without his protective gear.
Mailless → It is formed from "mail" (from Old French *mail*, meaning armor or protective covering) and "-less" (meaning without). The word "mailless" means without armor or protective covering.
Think of being 'without' ('-less') any 'armor' ('mail') — that's what mailless means.