ignorance
In todays society being ignorant is not an option. or The student was ignorant to the fact that the test was today instead of tomorrow.
There is not specific collective noun for the noun ignorance. The noun ignorance is an uncountable noun; quantities of ignorance are expressed in degrees, for example, some ignorance, much ignorance, total ignorance, etc. A term that expresses ignorance as a collective would be, 'the collective ignorance of a group' or 'the combined ignorance of a group'.
He feigned ignorance. Meaning, he pretended not to know.
The opposite of ignorance is knowledge
Some People Say Ignorance Is Bliss
Ignorance is when someone/something is unaware and is often used as an insult."Your ignorance is quite annoying."
Ignorance is prevalent
Until my husband walked out on me, I was in total ignorance of his affair.
Stacy felt really ignorance when her mom left her alone in the guest room.
ignorance
Lady Ellington scoffed at his ignorance
Their ignorance of the English language was bewildering.
His failure to follow simple instructions was not a misunderstanding but simply the result of plain ignorance. After answering the question wrong, Celia's ignorance of mathematics was painfully obvious.
Her intellect shone through the cloud of ignorance like a flash of lightning.
In todays society being ignorant is not an option. or The student was ignorant to the fact that the test was today instead of tomorrow.
I am surprised you do not want to lift yourself out of this slough of religious ignorance and whimsy.