grogginess

/ˈɡrɑɡɪnəs/
noun
  1. The feeling of being weak, confused, or unable to think clearly, especially after waking up or being sick.
    • Waking up in the middle of the night left him with a lingering grogginess.
    • After the long flight, she couldn't shake her grogginess and needed coffee.
    • The medicine caused grogginess, so he decided not to drive.
Antonyms
What does "grogginess" mean? | whatsthatwordmean | whatsthatwordmean