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90s Slang You Should Know


[uhn-di-fahynd] /ˌʌn dɪˈfaɪnd/
without fixed limits; indefinite in form, extent, or application:
undefined authority; undefined feelings of sadness.
not given meaning or significance, as by a definition; not defined or explained:
an undefined term.
Origin of undefined
1605-15; un-1 + defined
Related forms
[uhn-di-fahy-nid-lee, -fahynd-] /ˌʌn dɪˈfaɪ nɪd li, -ˈfaɪnd-/ (Show IPA),
undefinedness, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for undefined
Contemporary Examples
Historical Examples
  • Whatever the origin of his title, it well expressed the anomalous and undefined position of the midshipman.

  • I seek to define a part of the limitless and undefined mysteries of the body.

    The Blue Wall Richard Washburn Child
  • There was a short pause, but Mark had an undefined sensation that it was a satisfactory one in its way.

  • At first sight he had struck her as undefined, characterless.

    Virgin Soil Ivan S. Turgenev
  • His countenance was associated with an undefined but painful fact that lay crouching in a dusky hollow of my memory.

    Wilfrid Cumbermede George MacDonald
British Dictionary definitions for undefined


not defined or made clear: the job has remained undefined
Derived Forms
undefinable, adjective
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 undefined

1610s, from un- (1) "not" + past participle of define (v.).

Online Etymology Dictionary, © 2010 Douglas Harper
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