fatuity

fatuity
/fəˈtju:ətɪ; ?@ -ˈtu:ətɪ; fə`tuətɪ/ n
1 [U] state of being fatuous 愚昧.
2 [C] fatuous remark, act, etc 愚昧的言语、 行动等.

牛津英汉双解词典