But somewhere in the back of her mind, there is a nigglingdoubt about her past.
Times, Sunday Times (2012)
I forgave her but still had nigglingdoubts.
The Sun (2012)
But there is one nigglingdoubt.
Times, Sunday Times (2008)
Definition of 'doubt'
doubt
(daʊt)Explore 'doubt' in the dictionary
variable noun [NOUN that]
If you have doubt or doubts about something, you feel uncertain about it and do not know whether it is true or possible. If you say you have nodoubtabout it, you mean that you are certain it is true.
Definition of 'niggling'
niggling
(nɪgəlɪŋ)Explore 'niggling' in the dictionary
adjective [usually ADJECTIVE noun]
A niggling injury or worry is small but bothers you over a long period of time.