godan verb (-ru), intransitive verb
remain unsold; be left on the shelf
Describes goods that fail to sell and stay in stock. Often implies the item is unwanted or outdated.
新作の人気がなくて、大量に売れ残った。
The new product wasn't popular and a large quantity remained unsold.
この本は売れ残って棚
This book is left unsold and still sitting on the shelf.