GNAWING
Meaning of GNAWING in English
/ ˈnɔːɪŋ; NAmE / adjective
[ only before noun ] making you feel worried over a period of time :
gnawing doubts
Oxford Advanced Learner's English Dictionary.
Оксфордский английский словарь для изучающик язык на продвинутом уровне.
2005