While ignorant implies doing or saying something foolish not knowing any better, ignant implies that the person knew damn well and chose to act foolish anyway.
"That ignant bitch took off with the car after I told her I needed to use it."
1. An idea proposed by Iranian politicians to have an alternate, private internet for Iran that replaces the normal internet with Iranian government-approved content only. Term coined by Rachel Maddow on Oct 5, 2012.
2. Referencing definition 1, a term that describes an isolated, ideologically filtered realm of information. Term coined by Rachel Maddow on Oct 5, 2012.
The right-wing is building their own Iranternet with Fox News, Conservapedia, and other conspiracy theory-peddling media.