Antonyms are words that have opposite meanings. In the case of "subscribing," some antonyms include "canceling," "unsubscribing," "disavowing," and "rejecting." When someone subscribes to something, they agree to receive or support it. So, the opposite actions would be to cancel or reject something. Unsubscribing is also an antonym for subscribing, as it is the act of withdrawing from a service or publication. Similarly, disavowing involves denying any connection with the subscribed item. Subscribing is a positive action, and its antonyms are usually negative actions that indicate a lack of support or endorsement.