"Imperception" is a word in ENGLISH

imperception ENGLISH
Definition:

Want of perception.

Few words of positivity

Like an ant, I will find my way round any obstacle. Like a child, I will persevere with pinpoint focus.

Chris Murray, The Extremely Successful Salesman's Club

WORD SUGGESTIONS
Laugh your heart out.

How many C++ programmers does it take to change a light bulb?"You're still thinking procedurally! A properly designed light bulb object would inherit a change method from a generic light bulb class!"

dimness ENGLISH

Dullness, or want of clearness, of vision or of intellectual perception.

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nonsensitive ENGLISH

Not sensitive; wanting sense or perception; not easily affected.

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