adj. 25B6; adjective FRIGHTENING, unnerving, shocking; distressing, upsetting, disconcerting, perturbing, dismaying, disquieting, disturbing; informal scary.
reassuring.
ALARMING
Meaning of ALARMING in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012