narcoleptic adjective 3noun 1forms 3 adjective3 •Pertaining to or affected by narcolepsy.Miranda, who is narcoleptic and forgot to take her medication, was out cold for nearly 40 minutes after the plucky little girl called 911. — 2018 •(figurative) Tending to "put someone to sleep"; extremely boring or tedious.The debate started at 11.30am, nudging out of port with a characteristically narcoleptic speech from Lord Campbell of Alloway (Con). — 2005 •(figurative) Lacking activity; drowsy, lethargic.The loneliness of this new life, he said, is mitigated by Jacques, who spent most of the interview beached in a narcoleptic reverie at my feet, snoring and farting. — 2017 noun1 •One who suffers from narcolepsy ("a disorder characterized by sudden and uncontrollable attacks of deep sleep"). formsnarcoleptics · more narcoleptic · most narcoleptic