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undefined

American  
[uhn-di-fahynd] / ˌʌn dɪˈfaɪnd /

adjective

  1. without fixed limits; indefinite in form, extent, or application.

    undefined authority; undefined feelings of sadness.

  2. not given meaning or significance, as by a definition; not defined or explained.

    an undefined term.
undefined British  
/ ˌʌndɪˈfaɪnd /

adjective

  1. not defined or made clear

    the job has remained undefined
"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

Other Word Forms

  • undefinable adjective
  • undefinedly adverb
  • undefinedness noun

Etymology

Origin of undefined

First recorded in 1605–15; un- 1 + define ( def. ) + -ed 2 ( def. )

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.