From Longman Dictionary of Contemporary Englishnot ring truenot ring trueUNTRUEif something does not ring true, you do not believe it, even though you are not sure why It was a possible explanation, but it didn’t quite ring true. → ring
Examples from the Corpus
not ring true• None of her explanations rang true.• One of the jurors said that Hill's explanation just didn't ring true.• There was something odd about her story, something that didn't ring true.• But this would only be a story, and would not ring true.• Frankly, it just does not ring true.• Something does not ring true ... but what can we do?• Stories that she lightheartedly tipped him off his surfboard do not ring true of Diana who was totally in awe of him. 