meaningful explanation

You can't put a meaningful explanation short enough for them to read (or care about), and none of them will bother going to any other source to find out more about it.

Since I could not get a meaningful explanation on what the days had to do with the charge and the increase itself I refused to buy the insurance and left reluctantly without coverage.

I've seen appalling "art films" which seemed to consist of all the wrong angles, worst shots, terrible sound recording and god-awful editing, and we're supposed to fall over ourselves, scrambling to come up with meaningful explanations.

The audit's survey of managers who live outside the city found that about 60 percent gave no meaningful explanation for their request and 40 percent ignored the rule altogether, never even asking permission to live outside the city.

"I think what the Captain's trying to tell you, Spock, is that words sometimes convey a more meaningful explanation of the real world than mathematics," McCoy said with the usual cynical tone in his voice that arose when he confronted the logical Vulcan on such matters.

I find the serenity of mainstream forecasters in the face of their debâcle discreditable because they now gravely confuse the public discussion as they go on popping up with one optimistic forecast after another, without any meaningful explanation as to why they have been so wrong.