1. (a.) Causing sleep; tending to cause sleep; soporiferous\; as, the soporific virtues of opium.

2. (n.) A medicine, drug, plant, or other agent that has the quality of inducing sleep; a narcotic.

Amytal Amytal pill Demerol Dolophine H Laodicean Luminal Luminal pill M Mickey Finn Nembutal Nembutal pill Olympian Seconal Seconal pill Tuinal Tuinal pill alcohol aloof amobarbital sodium analgesic anesthetic anesthetized anodyne apathetic barb barbiturate barbiturate pill benumbed black stuff blah blase blue blue angel blue devil blue heaven blue velvet calmant calmative calming cataleptic chloral hydrate codeine codeine cough syrup comatose deadening depressant depressor desensitized detached disinterested dolly doped downer dozy dreamy drowsy drugged drugged with sleep dull goofball half asleep hard stuff heartless heavy heavy with sleep heavy-eyed hebetudinous heroin hop hopeless horse hypnotic in a stupor indifferent insouciant junk knockout drops languid laudanum lethargic liquor listless lotus lullaby mandrake meperidine methadone morphia morphine napping narcoleptic narcose narcotic narcotized narcous nightcap nodding nonchalant numb numbed numbing opiate opium oscitant out of it pacifier pain killer paregoric passive pen yan phenobarbital phenobarbital sodium phlegmatic pluckless poppy purple heart quietener quietening rainbow red resigned scag secobarbital sodium sedated sedative shit slack sleep-bringer sleep-causing sleep-compelling sleep-drowned sleep-drunk sleep-filled sleep-inducer sleep-inducing sleep-inviting sleep-producer sleep-provoking sleep-swollen sleeper sleepful sleeping draught sleeping pill sleepy sluggish slumberous slumbery smack snoozy sodium thiopental somnifacient somniferous somnolent soother soothing soothing syrup spiritless spunkless stoic stretchy stupefied stuporose stuporous supine tar torpid tranquilizer tranquilizing turps uncaring unconcerned uninterested white stuff withdrawn yawning yawny yellow yellow jacket