25B6; adjective STRESSFUL, anxious, worrying, fraught, nail-biting, tense, difficult, trying, worrisome, daunting, frightening; informal scary, hairy.
NERVE-RACKING
Meaning of NERVE-RACKING in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012