Found 2 items, similar to sleepiness.
English → English (WordNet) Definition: sleepiness sleepiness n : a very sleepy state; “sleepiness causes many driving accidents” [syn: drowsiness, somnolence] [ant: wakefulness]
English → English (gcide) Definition: Sleepiness Sleepiness \Sleep"i*ness\, n. The quality or state of being sleepy. [1913 Webster]