Commonsensically 

A noun used 5 people unable to articulate proper English during the description of something that doesn't actually make any common sense.

Well if you think about it commonsensically it should be obvious based on the situation

Commonsensically by Deftdieseldemon January 19, 2020

common-sensically challenged 

The lack or absence there of common sense or logic; allowing the development of stupidity, idiocy, and personification of utter ignorance.

Jim is common-sensically challenged, this was evident to his friends and family after he tried kissing a wild grizzly bear naked.

common-sensically challenged by neonfox April 11, 2017