unintelligent

adjective
UK /ˌʌnɪnˈtelɪdʒənt/
US /ˌʌnɪnˈtelɪdʒənt/

Not smart or not able to learn things easily.

The silly robot in the story was unintelligent and kept bumping into walls.


OTHER MEANINGS

2. Showing a lack of good judgment or clear thinking.

It was an unintelligent decision to leave the cake out in the rain.

3. Not showing signs of thought or understanding.

The movie's villain gave an unintelligent, blank stare when asked a question.

4. Lacking the ability to process information well, as a machine or system.

The old software was unintelligent and could not recognize simple commands.