muddleheaded

/ˈmʌdəlˌhɛdɪd/
adjective
  1. Having a confused or unclear mind; unable to think clearly.
    • The muddleheaded student kept mixing up the dates in history class.
    • I feel so muddleheaded this morning; I forgot my keys and my phone.
    • His muddleheaded reasoning made the simple problem seem impossible.
Antonyms
What does "muddleheaded" mean? | whatsthatwordmean | whatsthatwordmean