drowsier

英 [ˈdraʊzɪə]

美 [ˈdraʊzɪər]

adj.  困倦的; 昏昏欲睡的; 使人松弛的; 令人疲乏的; 使人困倦的
drowsy的比较级

柯林斯词典

• ADJ-GRADED 困倦的;昏昏欲睡的
  If you feeldrowsy, you feel sleepy and cannot think clearly.
  1. He felt pleasantly drowsy and had to fight off the urge to sleep.
     他感觉昏昏欲睡，只好尽量克制睡意。