Specifically: To give doubt and apprehension to, instead of confidence and courage; to impart fear to; to make irresolute; usually said of the mind or heart, and followed by the objective personal pronoun
If you have misgivings about something that is being suggested or done, you feel that it is not quite right, and are worried that it may have unwanted results. She had some misgivings about what she was about to do. a feeling of doubt or fear about what might happen or about whether something is right misgiving about