A 4-letter word for lack of good sense is "fool." This term refers to someone who acts unwisely or lacks judgment. It can also imply a playful or light-hearted form of foolishness.
A 6-letter word meaning stupidity is "foolish." It describes a lack of good sense or judgment, often associated with making unwise decisions. This term is commonly used to convey a sense of silliness or imprudence.
Sensible.
sensible
Intellect
sensible
sensible
The noun 'stupidity' is an abstract noun; a word for behavior that shows a lack of good sense or judgment; a word for a concept.
Wit is a three-letter word that refers to both a sense of humor and cleverness.
lack
air
The word "lack" refers to the absence or deficiency of something necessary or desired. It can describe a situation where something is missing or insufficient, such as lacking resources, skills, or qualities. In a broader sense, it can also convey a sense of need or want.
lack rare