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obsolescent

[ob-suh-les-uh nt] /ˌɒb səˈlɛs ənt/
adjective
1.
becoming obsolete; passing out of use, as a word:
an obsolescent term.
2.
becoming outdated or outmoded, as machinery or weapons.
3.
Biology. gradually disappearing or imperfectly developed, as vestigial organs.
Origin of obsolescent
1745-1755
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
Related forms
obsolescently, adverb
Can be confused
archaic, obsolescent, obsolete.
obsolescent, obsolete.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for obsolescent
Contemporary Examples
Historical Examples
  • An obsolescent appliance for reminding assassins that they too are mortal.

    The Devil's Dictionary Ambrose Bierce
  • A little but not very much of this is obsolete or obsolescent.

    Gryll Grange Thomas Love Peacock
  • The obsolescent Atahocan seems to have had no moral activity.

  • This ceremony is never trifled with, though it is now obsolescent.

  • The form with obsolescent ocelli has been named silvestris by Edwards.

    The Butterfly Book William Jacob Holland
  • The fighter-bomber squadrons use the MiG-17, an aircraft that is obsolescent but that performs well in a ground support role.

    Area Handbook for Bulgaria

    Eugene K. Keefe, Violeta D. Baluyut, William Giloane, Anne K. Long, James M. Moore, and Neda A. Walpole
  • His original instructions were obsolescent and he readily adapted himself to the altered situation.

    A Handbook of the Boer War Gale and Polden, Limited
  • I am not impelled by the archaic sex madness of the beast, nor by the obsolescent romance madness of later-day man.

  • The character of an obsolescent type has been caught with exceptional cleverness.

British Dictionary definitions for obsolescent

obsolescent

/ˌɒbsəˈlɛsənt/
adjective
1.
becoming obsolete or out of date
Derived Forms
obsolescence, noun
obsolescently, adverb
Word Origin
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
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Word Origin and History for obsolescent
adj.

1755, from Latin obsolescentum (nominative obsolescens), present participle of obsolescere "fall into disuse" (see obsolete).

Online Etymology Dictionary, © 2010 Douglas Harper
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