sleepyheaded

/ˈsliːpiˌhɛdɪd/
adjective
  1. Drowsy, sluggish, or not fully alert, especially from lack of sleep or tiredness.
    • The sleepyheaded driver nearly missed his exit on the highway.
    • He stumbled into the kitchen, still sleepyheaded, and poured himself a cup of coffee.
    • After staying up late studying, she felt too sleepyheaded to concentrate in class.
  2. Characterized by or causing a state of drowsiness or mental dullness.
    • The warm, stuffy room had a sleepyheaded effect on everyone inside.
    • The long, monotonous lecture made the entire audience feel sleepyheaded.
    • Taking that cold medicine always leaves me with a sleepyheaded feeling for hours.
Antonyms
What does "sleepyheaded" mean? | whatsthatwordmean | whatsthatwordmean