fooldom

uncountable

The state or essence of being a fool.

Japanese Meaning

愚かさ / 馬鹿である状態

His stubborn fooldom led him to dismiss every cautious warning and invest all his savings in a risky scheme.

彼の頑固な愚かさのせいで、彼はどんな慎重な警告も無視して、貯金をすべて危険な計画に投資してしまった。

Sense（1）

The state or essence of being a fool.