- deficient in intelligence; dull; stupid: Even the most unintelligent intern knew how to operate this copy machine.
- characterized by or proceeding from a lack of intelligence: No one will respect you as long as you go around making unintelligent remarks like that.
- not endowed with the ability to think or reason: We should protect unintelligent life like trees and protozoa as well as intelligent life like humans and dolphins.
- lacking intelligence; stupid; foolish
- not endowed with a mind or intelligence
