Synonyms and related words :
abysmal, abyssal, agape, ajar, anesthetized, bottomless, cataleptic, cavernous, comatose, deep as hell, dehiscence, dehiscent, doped, doziness, dozy, dreamy, drowsiness, drowsy, drugged, drugged with sleep, fathomless, gape, gaping, half asleep, heaviness, heavy, heavy with sleep, heavy-eyed, in a stupor, languid, languor, lethargic, lethargy, napping, narcoleptic, narcose, narcotized, narcous, nodding, openmouthed, oscitancy, oscitant, oscitation, out of it, pandiculation, plumbless, plunging, ringent, sedated, slack-jawed, sleep-drowned, sleep-drunk, sleep-filled, sleep-swollen, sleepful, sleepiness, sleepy, slumberous, slumbery, snoozy, somnolence, somnolency, somnolent, soporific, soundless, stretching, stretchy, stuporose, stuporous, the gapes, unfathomable, unfathomed, unsounded, without bottom, yawn, yawny