no returns; non-returnable
Fixed phrase used in retail and online shopping to indicate that items cannot be returned. Often seen on signs, receipts, or product pages.
This item cannot be returned.
The receipt said 'no returns'.
返品 is the noun meaning 'return of goods'; 返品不可 is the fixed expression meaning 'returns not allowed'.
不可 is a suffix meaning 'not possible' or 'not allowed'; 返品不可 is one common compound using it.
Compound of 返品 (return of goods) and 不可 (not allowed).