1.
If you have a feeling of ~, you feel rather anxious or afraid, because you think that something is wrong.
Sensing my ~ about the afternoon ahead, he told me,‘These men are pretty easy to talk to.’...
We left with a deep sense of ~, because we knew something was being hidden from us...
= anxiety
N-UNCOUNT: oft with poss
2.
If you say that there is ~ in a situation, you mean that people are dissatisfied or angry, but have not yet started to take any action.
He faces growing ~ among the Democrats about the likelihood of war.
...the depth of public ~ about the economy...
N-UNCOUNT