somnolent

1 desiring or needing sleep trying to teach somnolent students on a very hot day Synonyms dozy, drowsy, slumberous (or slumbrous), sleepyRelated Words asleep, dormant, dozing, resting, sleeping, slumbering; nodding, yawningNear Antonyms restive, restless, sleepless; insomniacAntonyms alert, awake, conscious, wakeful, wide-awake

2 tending to cause sleep the somnolent hum of insects in the grass Synonyms drowsy, narcotic, opiate, sleepy, slumberous (or slumbrous), somniferous, hypnotic, soporificRelated Words depressant, relaxant, sedative, tranquilizing (also tranquillizing); calming, comforting, lulling, pacifying, quieting, relaxing, restful, settling, soothing; analgesic, anesthetic, anesthetizing, benumbing, deadening, dulling, numbing; hypnotizing, mesmerizing, stupefyingNear Antonyms arousing, awakening, energizing, invigorating, rousing, stimulating, wakening, waking; bracing, refreshing, restorative, reviving, stimulative, stimulatoryAntonyms stimulant