adj. 25B6; adjective GLOOMY, negative, defeatist, downbeat, cynical, bleak, fatalistic, dark, black, despairing, despondent, depressed, hopeless; suspicious, distrustful, doubting.
optimistic.
PESSIMISTIC
Meaning of PESSIMISTIC in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012