nig ‧ gling /ˈnɪɡ ə lɪŋ/ BrE AmE adjective
1 . niggling doubt/worry/suspicion etc a slight doubt etc that you cannot stop thinking about SYN nagging
2 . a niggling injury or problem is a slight one that does not go away
nig ‧ gling /ˈnɪɡ ə lɪŋ/ BrE AmE adjective
1 . niggling doubt/worry/suspicion etc a slight doubt etc that you cannot stop thinking about SYN nagging
2 . a niggling injury or problem is a slight one that does not go away
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012