undefined is just what it says
That is undefined to the MAX

undefined!
by stav August 10, 2004

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Top Definition
A word in the urbandictionary that is lacking definition.
This word was previously undefined.
by Denis Baldwin June 03, 2004

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See the example below.
See the above definition for undefined.
by Mr. Bodkin Newberry August 17, 2007

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The word that just popped up when you searched for a word that isn't in urban dictionary.
You: WTF!11!!ONE!!! UNDEFINED??!?!?!! WTF!
by PiracyX September 09, 2009

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What you wish half of the words on here were.
Undefined. Magical Word.
by Jaibow August 26, 2011

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What you see when someone deletes your definition.
This word is undefined
by mesoiam February 06, 2005

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The worst curse word in math
Ugh this math is frustrating! ITS SO UNDEFINED!!
by InS4nity HD October 13, 2016

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