unsubscribe
verb (used without object)
to cancel a subscription to or remove a name from an online mailing list, publication, or service.
Used to describe actions that started in the past and continue into or have direct relevance to the present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Even worse, users may elect to be notified if someone has unsubscribed, making it harder to opt out without causing some friction.
From New York Times ● Nov. 12, 2016