A lack of interest or enthusiasm; apathy:
The weakening or failure of a material, such as metal or wood, resulting from prolonged stress.
A sleepy quality or state
Find another word for somnolence. In this page you can discover 16 synonyms, antonyms, idiomatic expressions, and related words for somnolence, like: drowsiness, sluggishness, lethargy, fatigue, sleepiness, wakefulness, light-headedness, sleeplessness, dyspnoea, lightheadedness and mental-confusion.