noun
ordinary mind; mediocre thinking; common person's judgment
A somewhat literary or formal term referring to the thinking or judgment of an average, unremarkable person. Often used in contrast to superior intellect or insight.
凡慮では計り知れない深い考えだ。
It is a profound thought that cannot be fathomed by ordinary minds.
彼の提案は凡慮の域を出ていない。
His proposal does not go beyond the realm of mediocre thinking.