Somnolence

Synonyms of somnolence

• lethargy
• drowsiness
• sleepiness

Antonyms of somnolence

• alertness
• vigilance
• wakefulness

Collocations of somnolence

extreme somnolence

Frequency: 70 %

The medication caused extreme somnolence in the patient.

excessive somnolence

Frequency: 60 %

His excessive somnolence was a result of staying up all night.

severe somnolence

Frequency: 55 %

The severe somnolence made it difficult for him to concentrate.

chronic somnolence

Frequency: 50 %

The chronic somnolence affected her daily activities.

persistent somnolence

Frequency: 45 %

Despite getting enough sleep, she experienced persistent somnolence.

Idiomatic Expressions for somnolence

• Phrase: to succumb to somnolence
  Meaning: to give in to the feeling of sleepiness or drowsiness
  Usage: Despite her efforts, she eventually succumbed to somnolence and fell asleep at her desk.