adj. 25B6; adjective THREATENING, menacing, baleful, forbidding, sinister, inauspicious, unpropitious, portentous, unfavourable, unpromising; black, dark, gloomy; formal minatory; poetic/literary direful.
promising.
OMINOUS
Meaning of OMINOUS in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012