n. 25B6; noun DEFEATIST, fatalist, prophet of doom, cynic, doomsayer, doomster, Cassandra; sceptic, doubter, doubting Thomas; misery, killjoy, Job's comforter; informal doom (and gloom) merchant, wet blanket; N. Amer. informal gloomy Gus.
optimist.
PESSIMIST
Meaning of PESSIMIST in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012