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Definition of obsolescence

obsolescence

/ˌɑːb.səˈlɛs.əns/
ob · so · les · cence
Adverb:obsolescently
•
Adjective:obsolescent
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obsolescence Lexical Profile

obsolescence Game Scores & Validity

• noun

1

The process or state of becoming outdated, no longer used, or superseded by newer technology or practices.

Example

"Rapid advances in semiconductor engineering have accelerated the obsolescence of older computer models."

2

In biology, the gradual disappearance, reduction, or rudimentary state of an anatomical part, organ, or characteristic over evolutionary time.

Example

"Cave-dwelling fish often exhibit the gradual obsolescence of their eyes over successive generations."

Synonyms
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Antonyms
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• Rhymes for obsolescence

• Nearby Words

obsessively
obsessiveness
obsidian
obsolescence
obsolescent
obsolete
obsoleteness

Word Origin & Etymology

Coined in the mid-18th century from the Latin verb obsolescere ('to grow old' or 'to fall into disuse'), formed from ob- ('away') and solere ('to be accustomed').

Cite this Entry

Wordmom. (2026). Definition of Obsolescence. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/obsolescence
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