He was careful not to show his lack of confidence.

He is upset by her lack of confidence in him.

"There's just a lack of confidence that he is going to do what's right."

If that doesn't show a lack of confidence, what does?

I said let's try to correct things, work on the lack of confidence.

That may be from a lack of confidence in each other.

The man with depression who hasn't worked for years and is held back by lack of confidence.

What they all share is a lack of confidence in their ability to work within the system.

It had nothing to do with poor memory or a lack of confidence in him.

"Given the run the team has been on, perhaps there is a lack of confidence in each other."