noun which may take the genitive case particle 'no'
sold-out
Used as a no-adjective to describe items, tickets, or events that are completely sold out. Common in commercial and event contexts.
人気のコンサートはソールドアウトになった。
The popular concert became sold out.
ソールドアウトの商品は再入荷未定です。
The sold-out item is not scheduled for restock.