addlebrained

/ˈædəl ˌbreɪnd/
adjective
  1. Having a confused or foolish mind; unable to think clearly.
    • His addlebrained plan to build a raft out of cardboard quickly fell apart.
    • The addlebrained student left his backpack on the bus again.
    • She felt addlebrained after staring at the computer screen for hours.
Antonyms
What does "addlebrained" mean? | whatsthatwordmean | whatsthatwordmean