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obsolescent

[ ob-suh-les-uhnt ]
/ ˌɒb səˈlɛs ənt /
SEE SYNONYMS FOR obsolescent ON THESAURUS.COM

adjective

becoming obsolete; passing out of use, as a word: an obsolescent term.
becoming outdated or outmoded, as machinery or weapons.
Biology. gradually disappearing or imperfectly developed, as vestigial organs.

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Origin of obsolescent

First recorded in 1745–55, obsolescent is from the Latin word obsolēscent- (stem of obsolēscēns, present participle of obsolēscere to fall into disuse). See obsolete, -escent

OTHER WORDS FROM obsolescent

ob·so·les·cent·ly, adverb

WORDS THAT MAY BE CONFUSED WITH obsolescent

1. archaic, obsolescent , obsolete2. obsolescent , obsolete

Words nearby obsolescent

obsidian dating, obsidional coin, obsolesc., obsolesce, obsolescence, obsolescent, obsolete, obstacle, obstacle course, obstacle race, obstet.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Words related to obsolescent

out-of-date, out of fashion, senescent

Example sentences from the Web for obsolescent

British Dictionary definitions for obsolescent

obsolescent
/ (ˌɒbsəˈlɛsənt) /

adjective

becoming obsolete or out of date

Derived forms of obsolescent

obsolescence, nounobsolescently, adverb

Word Origin for obsolescent

C18: from Latin obsolescere; see obsolete
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012