unchallenged

Within the CCM, there was some opposition to the fact that she became the party's presidential candidate unchallenged.

He said there had been a "machiavellian cover-up", and said it was "unacceptable" that people involved had been allowed to go unchallenged.

In an interview with MarketWatch he described how some of their drawbacks have been left unchallenged and risks understated.

Nuguse had cut nearly half a second off the indoor mile world record, a mark that had stood unchallenged for six years.

But wherever you are in the world, China's overwhelming dominance in clean tech industries remains unchallenged, other new data from Ember shows.