“Why is it that London is in the throes of a simultaneous and quite unwonted dim sum explosion?”

“In other conflicts, too, Roman armies seemed to have unwonted difficulties.”

“So he will miss an event which last year afforded him more, unwonted, publicity than ever before in his life.”

“I am unwont to press my favours, or to deal with priests who require entreaty, when gifts are held out to them.”