somniferous
/sɑmˈnɪfərəs/
adjective
- Causing or inducing sleep; soporific.
- The professor's monotone voice had a somniferous effect on the entire class.
- The long, dark drive through the countryside was so somniferous that he had to pull over.
- Chamomile tea is known for its somniferous properties and is often drunk before bed.
Antonyms