obsolescence
noun [ U ]
uk/ˌɒbsəˈlesəns/ usthe process or fact of becoming old-fashioned and no longer useful:
Depreciation refers to the loss of value of an asset due to age, wear and tear, and obsolescence.
Unless it changes, the industry faces the risk of technological obsolescence.
built-in obsolescence
PRODUCTION, MARKETING
a feature of a product or part of its design that means it will not last for a long time:
Commercial property has built-in obsolescence, being sensitive to technological change.
obsolescent
adjective formal
There are difficulties in finding obsolescent components for older machinery.
See also
inventory obsolescence
planned obsolescence