[ 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

un·de·fin·ed·ly [uhn-di-fahy-nid-lee, -fahynd-] /ˌʌn dɪˈfaɪ nɪd li, -ˈfaɪnd-/, adverbun·de·fin·ed·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for undefined

British Dictionary definitions for undefined


/ (ˌʌndɪˈfaɪnd) /


not defined or made clearthe 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