Skip to definition.
Get the FREE one-click dictionary software for Windows.
NEW iPhone Audio English dictionary


Adjective: soporiferous  `só-pu'ri-fu-rus
  1. Sleep inducing
    - soporific, somniferous, somnific, hypnogogic, hypnagogic
     
  2. Inducing mental lethargy
    "a soporiferous speech"
    - narcotic, soporific

See also: depressant, uninteresting