n. 25B6; noun BOREDOM, tedium, listlessness, lethargy, lassitude, languor, weariness, enervation; malaise, dissatisfaction, melancholy, world-weariness, depression, Weltschmerz.
ENNUI
Meaning of ENNUI in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012