It should provide an adequate explanation of the observed facts.

It is very hard to provide a simple but adequate explanation.

They were entirely different women but few people would find that an adequate explanation.

The committee could find no adequate explanation for these strange cases.

A happy medium would be nice, or, at the very least, an adequate explanation for all of the changes.

But militarism is not an adequate explanation for any of them.

It seemed an adequate explanation for the gesture of trust.

However, other data presented here suggest that this is not an adequate explanation.

"And so far there has been no adequate explanation of that response."

There is not an adequate explanation, other than that he worked extremely hard and several key breaks went his way.