soporiferous

• 古旧形容词，意为引起睡意或使人昏昏欲睡的；现代英语中很少使用。

An obsolete adjective meaning tending to induce sleep or drowsiness; rarely used in modern English.

1. Sleep-inducingC2formal

   Tending to cause sleep; having a soporific effect.

   催眠的

   • The soporiferous drone of the professor's lecture made several students nod off.
   • The warm milk had a soporiferous quality that helped him fall asleep.
   • The gentle, soporiferous rhythm of the rain on the roof was very calming.

   同义词hypnoticnarcoticopiatesedativesomniferoussoporific

   反义词invigoratingrousingstimulatingwakening

2. Causing mental lethargyC2formal

   Inducing a state of mental dullness, drowsiness, or lethargy.

   令人昏睡的

   • The repetitive, soporiferous task made it hard to stay focused.
   • The long, soporiferous meeting drained all his energy.
   • The soporiferous atmosphere of the quiet library made him feel sluggish.

   同义词drowsynarcoticopiatesomniferoussoporificstupefying

   反义词energizinginvigoratingstimulatingwaking