His leadership was unchallenged for many years.
Not disputed or questioned; accepted as true or valid.
She remained the unchallenged champion of the tournament.
Not faced with any competition or opposition.
He unchallenged the decision made by the committee.
To not contest or oppose something.
Ndi dikishonale yamphamvu yaulere yokhala ndi zithunzi ndi mafulashikadi.
