stupidness
Noun
Meaning
(uncountable, rare) The quality or state of being stupid.
(countable, rare) The result or product of being stupid.
Source: en.wiktionary.orgSynonyms
stupidity
slowness
dumbness
fatuity
asininity
obtuseness
simpleness
denseness
slow-wittedness
feeblemindedness
Antonyms
Examples
Let him pay the price for his stupidness and his strong hand tactics.
My son from the time he was ten years old would laugh aloud about that stupidness above.