Meanings of unbent enough in English

So deep was the sense of awe that Handy Solomon unbent enough to whisper to me:

But not even Swithin was immune to gratitude; he unbent enough to clap Henry on the back.

The guard unbent enough to guess not.

Then, with a memory of his own West Point days, Lieutenant Denton unbent enough to remark feelingly:

It took both of us crawling around to get him unbent enough to lay in my lap.

He unbent enough to tell me that he had been an athlete, when he was a young man, a professional foot-racer in Eastern Canada.

'True.' He unbent enough to smile faintly.

"You'll find out." Marphissa couldn't yet tell Toirac that "Bascare" was actually Alliance Fleet Captain Bradamont, but she unbent enough to explain more.