(of an incident or a person) said, without proof, to have taken place or to have a specified illegal or undesirable quality.
The alleged conspiracy plot was the subject of extensive media coverage, but no concrete evidence was presented to support the claims.
The witness provided a statement about the alleged misconduct by the company's executives, which triggered a thorough internal review.
The court case collapsed because the prosecution could not provide sufficient evidence to prove the alleged wrongdoing.
The alleged involvement of a prominent celebrity in the charity scandal raised questions about their moral character and reputation.
