adjective
1.
tending to induce sleep
a soporific drug
soporific prose
Synonyms: hypnotic, narcotic, opiate, sleepy, slumberous, somnifacient, somniferous, somnific, somnolent, somnorific, soporiferous, soporifical
Related Word: calming, quietening, sedative, tranquilizing; anesthetic, deadening, numbing
Contrasted words: arousing, waking; invigorating, stimulating
2.
Synonyms: sleepy 1, dozy, drowsy, nodding, ||peepy, ||sloomy, slumberous, slumbery, snoozy, somnolent