Causing sleep; soporific
Of or relating to narcotics, their effects, or their use.
Bringing sleep, quiet, or ease; narcotic
Causing sleep or drowsiness; soporific
Inducing or tending to induce sleep; soporific.
Inducing or tending to induce sleep.
Inducing sleep or sedation
Find another word for somniferous. In this page you can discover 14 synonyms, antonyms, idiomatic expressions, and related words for somniferous, like: hypnotic, narcotic, opiate, sedative, sleepy, slumberous, somnifacient, somnific, somnolent, soporific and awareness.