Big Huge Thesaurus

soporific

adjective

• soporiferous
• somniferous
• somnific
• hypnogogic
• hypnagogic
• narcotic

similar terms

• depressant
• uninteresting

noun

• hypnotic
• drug
• hypnagogue

sounds kind of like

• saprobic
• saprophagous
• spareribs
• spearfish
• sphyrapicus
• superbug
• superficies
• superpose
• supervise