1. (

• soporific ,
• hypnotic

) a drug that induces sleep ;

1. (

• soporific ,
• soporiferous ,
• somniferous ,
• somnific ,
• hypnogogic ,
• hypnagogic

) sleep inducing ;

2. (

• narcotic ,
• soporiferous ,
• soporific

) inducing mental lethargy; "a narcotic speech" ;