English example sentences with "unchallenged"

I cannot let it go unchallenged.
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Japan's competitiveness in camera making is unchallenged.
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But I could not rest, Watson, I could not sit quiet in my chair, if I thought that such a man as Professor Moriarty were walking the streets of London unchallenged.
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Unchallenged faith in books is worse than illiteracy.
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The rapid urbanization that Algeria experienced immediately after its independence loosened the grip of the country's unchallenged traditions and cultural taboos.
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Your triumphs will never go unchallenged by me.
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