the inability to obtain adequate sleephas suffered from insomnia virtually his entire life
has suffered from insomnia virtually his entire life
sleeplessness, wakefulness
alertness, restlessness
drowsiness, sleepinessnarcolepsy
ca. 1623
英语同义词词典收录了63618条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。