Relating to or suffering from narcolepsy, a condition characterized by a tendency to fall asleep suddenly and unpredictably.
Early 20th century: from french narcoleptique, from greek narke "numbness" + lepsis "a seizure".
- The narcoleptic driver was a danger to himself and others, often falling asleep at the wheel.
- The narcoleptic student had trouble staying awake in class, despite his best efforts.
- The narcoleptic patient was unable to hold down a job, due to the unpredictable nature of the condition.
- The narcoleptic dog would fall asleep suddenly, regardless of the activity around him.
- The narcoleptic episodes were often triggered by stress, excitement, or other emotional states.