Narcoleptic (adjective)

Relating to or suffering from narcolepsy, a condition characterized by a tendency to fall asleep suddenly and unpredictably.

Origin:

Early 20th century: from french narcoleptique, from greek narke "numbness" + lepsis "a seizure".

Examples:

1. The narcoleptic driver was a danger to himself and others, often falling asleep at the wheel.
2. The narcoleptic student had trouble staying awake in class, despite his best efforts.
3. The narcoleptic patient was unable to hold down a job, due to the unpredictable nature of the condition.
4. The narcoleptic dog would fall asleep suddenly, regardless of the activity around him.
5. The narcoleptic episodes were often triggered by stress, excitement, or other emotional states.