n. 25B6; noun WEARINESS, ennui, apathy, unconcern, accidie; frustration, dissatisfaction, restlessness, restiveness; tedium, dullness, monotony, repetitiveness, flatness, dreariness; informal deadliness.
BOREDOM
Meaning of BOREDOM in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012