Empty-headed and Vacant

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

Vacant is a synonym for empty-headed in full topic. In some cases you can use "Vacant" instead an adjective phrase "Empty-headed", when it comes to topics like flighty.

Vacant adjective - Lacking contents that could or should be present.

Empty-headed is a synonym for vacant in full topic. You can use "Empty-headed" instead an adjective "Vacant", if it concerns topics such as absent-minded.

Nearby Words: vacate, vacancy, vacantly