ob·​so·​les·​cent | \ ˌäb-sə-ˈle-sᵊnt How to pronounce obsolescent (audio) \

Definition of obsolescent

: going out of use : becoming obsolete

Keep scrolling for more

Other Words from obsolescent

obsolescently adverb

Examples of obsolescent in a Sentence

Recent Examples on the Web Thousands of deficient and structurally obsolescent bridges are languishing across the nation. Sam Wood, Philly.com, "Pa. steel girding the replacement Tappan Zee bridge," 25 Aug. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'obsolescent.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of obsolescent

1755, in the meaning defined above

Keep scrolling for more

Learn More about obsolescent

Time Traveler for obsolescent

Time Traveler

The first known use of obsolescent was in 1755

See more words from the same year

Statistics for obsolescent

Cite this Entry

“Obsolescent.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/obsolescent. Accessed 7 December 2019.

Keep scrolling for more

More Definitions for obsolescent


How to pronounce obsolescent (audio)

English Language Learners Definition of obsolescent

: no longer useful : becoming obsolete

Keep scrolling for more

More from Merriam-Webster on obsolescent

Rhyming Dictionary: Words that rhyme with obsolescent

Spanish Central: Translation of obsolescent

Nglish: Translation of obsolescent for Spanish Speakers

Comments on obsolescent

What made you want to look up obsolescent? Please tell us where you read or heard it (including the quote, if possible).


the study of flags

Get Word of the Day daily email!

Test Your Vocabulary

Semantic Drift Quiz

  • a twisty river
  • Which of the following was once a synonym for fun?
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!