not challenged

References in classic literature ?
Harkey, a long, lank Texan, was unusually friendly for one with a saturnine disposition, and, as long as his theory that gold grew was not challenged, was quite companionable.
class="MsoNormalHe further said the electoral laws provide mechanisms within which parties can challenge such issues but the same was not challenged.
Justice Muneeb asked as to why the petitioner had not challenged the returning officer's verdict in the Election Commission of Pakistan (ECP), which was the relevant legal forum, and instead approached the high court.
'This is our right to gather and show our unity, our sincerity to see that the sovereignty of the Constitution is not challenged,' he wrote on Facebook.
Shehzad, who has also not challenged his positive dope test report, again admitted his mistake but claimed that he was ignorant about the law, which prohibits him to play club cricket during the ban.
He did not explain why he had not challenged the arbitration ruling in London, saying he could not 'discuss our strategy in public'.
' JI has not challenged mandate of Nawaz Sharif but we have challenged his corruption.
ABC says the former Olympic champion and patriarch of the Kardashian television clan will give a ''far-ranging interview.'' Jenner has not spoken publicly about it but he has been looking more feminine in appearance, and those in his inner circles have not challenged speculation that he is preparing to live as a woman.
The accused had not challenged the authority of the Tribunal to prosecute them for obstruction of justice, but pleaded not guilty on the merits," release added.
However, frustration can be just as detrimental to an advanced reader who is not challenged but bored with a reading assignment.
Shocking hypocrisy unfortunately not challenged by other panellists, David Dimbleby, or the audience and to date the media.
While I agree with Marske independent councillor Mike Findley that the council chamber is the correct place to challenge councillors, the truth is that if made up words such as Labdependent are not challenged then people believe they exist.