Use "unadvertised" in a sentence

1. The most successful Americanizations included Madame Sherry (1910) and Maytime (1917), though the German source of the latter (Wie einst im Mai) went unadvertised due to …

2. By starting your shopping trip with Basket, you can search local stores to compare prices of everyday products, find in store unadvertised sales, coupons and save up to 60% on your shopping trip