Erratic and Empty-headed

Erratic adjective - Lacking a definite plan, purpose, or pattern.

Empty-headed and erratic are semantically related. In some cases you can use "Empty-headed" instead an adjective "Erratic".

Nearby Word: errant

Empty-headed adjective - Not having or showing an ability to absorb ideas readily.

Erratic and empty-headed are semantically related. Sometimes you can use "Erratic" instead an adjective phrase "Empty-headed".