soporific
Pronunciation:
/ˌsoʊ.pəˈɹɪf.ɪk/noun
Definitions
Something inducing sleep, especially a drug.
Example: The doctor prescribed a soporific to help the patient sleep.
Something boring or dull.
adjective
Definitions
(pharmaceutical effect) Tending to induce sleep.
Boring, dull.
Example: The professor delivered a soporific lecture.