unadvertisement

plural unadvertisements

1. countableA public notice that warns of the risks associated with a product, rather than promoting it like an advertisement.

   We created some “unadvertisements.” This one, for example, says, “Mrs. R is doing fine without vasodilators,” and it goes on to explain some of the physiology of her condition, […]

   1983, United States. Congress. Senate. Special Committee on Aging, Drug Use and Misuse: A Growing Concern for Older Americans, page 51

   1 more example

   This is an unadvertisement that is designed to point out that sedatives can be very bad for the elderly. This one says in the headline, “In the elderly, the side effects of sedatives are all over the map,” […]

   1988, United States. Congress. Senate. Special Committee on Aging, Adverse Drug Reactions, page 56

2. countableuncountablecomputingThe withdrawal of an earlier notification.

   When a publisher disconnects from Broker 1, Broker 1 sends an unadvertisement message for any advertisements it has received from the publisher. Note that these unadvertisements may induce unsubscriptions to be propagated in the reverse direction of the unadvertisement propagation […]

   2010, Laurence T. Yang, Mobile Intelligence, page 79