adj. 25B6; adjective FRIGHTENING, horrifying, terrifying, menacing, chilling, spine-chilling, hair-raising, alarming, unnerving, daunting, formidable, forbidding, dismaying, disquieting, disturbing; informal scary.
FEARSOME
Meaning of FEARSOME in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012