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90s Slang You Should Know


[ob-suh-les-uh nt] /ˌɒb səˈlɛs ənt/
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becoming outdated or outmoded, as machinery or weapons.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.
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
Related forms
obsolescently, adverb
Can be confused
archaic, obsolescent, obsolete.
obsolescent, obsolete. 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
  • Are archaic (old-fashioned), obsolete (discarded), and obsolescent (rapidly disappearing) terms more common in speech or books?

    Public Speaking Clarence Stratton
  • An obsolescent appliance for reminding assassins that they too are mortal.

    The Devil's Dictionary Ambrose Bierce
  • The countless codes, now obsolescent, over which dead eyes had grown dim!

  • A little but not very much of this is obsolete or obsolescent.

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

  • 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.

  • These airplanes are obsolescent, if not obsolete, and their crews are trained for reconnaissance only.

    Area Handbook for Romania Eugene K. Keefe, Donald W. Bernier, Lyle E. Brenneman, William Giloane, James M. Moore, and Neda A. Walpole
British Dictionary definitions for obsolescent


becoming obsolete or out of date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

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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