Obsolescence is the act or process of a product becoming out-of-date, discarded, no longer in use. The rejection is for some reason other than being worn out or inoperable. It may apply to an individual item or to all of the items in a given class or group.

The active verb form, less widely acceptable, is “to obsolete” or “to make obsolete.”¬†[1]



  1.  American Marketing Association, AMA Dictionary.

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