Unchallenged Meaning in Bengali

What is the meaning of word Unchallenged in Bengali/Bangla ?

Meaning of Unchallenged in Bangla is : অপরিবর্তিত (O . p o . r i . b o r . t i . t o)

Defenition of word Unchallenged

Example

the report's findings did not go unchallenged

Other Meaning of Unchallenged