He wasn't going to put up with this complete lack of concern a moment longer.

Yet now that it had happened, he felt a curious lack of concern.

This was a studied lack of concern on my part.

His lack of concern put him in the majority, at least on this day.

You could have sliced the lack of concern with a knife.

Your lack of concern about having no horse to ride is quite apparent.

The lack of concern for people and their lives is deeply rooted.

Quite clearly, we are now paying the price for our lack of concern.

Street felt that Williams seemed to show a lack of concern, and decided to move on.

There did seem to be a lack of concern, one way or the other, this serene morning.