Agnorant 

ag-ner-uhnt , noun
1. people who are ignorant and arrogant simultaneously:

Example: Agnorant people believe they know more about science than scientists.

Agnorant by theafterclap January 18, 2022

Weaponised Ignorance 

The creation of far-reaching, pervasive and destructive policy based upon unbelievably unreliable, unpredictable and/or otherwise ridiculously, unsubstantiated, merit-less untruth.

Current example of Weaponised Ignorance in a time when airtravel has NEVER been more safe: These new-fangled airplanes are just waaaay too complicated for pilots to fly. Too many buttons and switches to deal with. We need to bring back those old-school airplanes with them 'flappin' wings' and git rid of all these new ones with the com'puters...

Weaponised Ignorance by YAWA March 13, 2019

common ignorance 

opposite of common sense and much more common

common ignorance......at 14 years old my son told me ""there is not much common sense but there is a whole bunch of common igornance""

common ignorance by tommyk4960 May 25, 2011

ignorance 

Lack of knowledge

Unfortunately, the youth of today choose ignorance as a "Badge of Courage."

ignorance by Knowledge October 21, 2003

Agnorant 

Someone who is both arrogant and ignorant.

Gloria: ”Hey Jim, do you want to come to get some ice cream.”
Jim: ”No, I’m too good to be seen with a girl like you!”
Gloria: ”Wow, you really are agnorant.”

Agnorant by B Talented January 13, 2008

self-perpetuating ignorance 

A phrase used to describe the blind beliefs of any institution or state where someone is told to believe something without evidence or reason and where that ignorance is then passed on to others (because they believe the lies they have been told) and becomes self-perpetuating.

'Nationalism is a form of self-perpetuating ignorance where we are taught to hate the 'other' or outside group.'

'No you cannot convert me to your religion, I have no desire to be a part of your cult's self-perpetuating ignorance.'

self-perpetuating ignorance by lostinsuburbia May 22, 2013

Ignorance 

Having a lack of knowledge or education of a subject AND revealing that lack of knowledge/education by making bold and judgemental statements.

Examples of Ignorance

"Most black people are criminals"
"Most republicans are racist"

Ignorance by bookyboss December 20, 2009