IPA: /ˈstæmpləs/
KK: /ˈstæmpləs/
Describing something that does not have a stamp on it.
The letter was stampless, so it could not be sent through the mail.
Stampless → It is formed from "stamp" (from Old French *estampe*, meaning a mark or impression) and "-less" (meaning without). The word "stampless" means without a stamp or mark.
Think of something that is 'without' ('-less') a 'mark' or 'impression' ('stamp'). This helps you remember that 'stampless' refers to something lacking a stamp.