To have not done something; an abbreviation of "I had not", coming from the abbreviations "I had" (I'd) and "had not" (hadn't).
Pete - "I think you should study chapter 12 for your Humanities exam."
Rachel - "Good idea, I'dn't thought about that chapter."
by Pete McDonald February 24, 2003

5 Words Related to Idn't

Texan or Southern slang for "isn't it".
Bob: Kinda windy, idn't?
Earl: Yup. Perty windy.
by Max... SleepyMax March 14, 2008
Acronym for "I Don't Need This Shit"
I'm so sick of these common app supplements... IDNTS
by matzohbawl November 15, 2010
Contraction of I would not or I should not.
I'd (I would/should) + n't (not)
I'dn't want that here.
I'dn't be there.
by Nobe Awdy July 22, 2009
Acronym for "I Don't Need This"
When Vince continued to stalk Lily, she blocked his call and said, "IDNT."
by amil21 October 23, 2009
Internet acronym for "I DO NOT THINK SO"

Mark is right all the time? IDNTS!
by I am Indy September 27, 2007

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