impugnment
/ˈɪmpʌɡnmənt/Definitions
1. noun
The act of challenging or attacking the validity or truth of something, especially a statement or fact.
“The court ruled that the impugnment of the witness’s testimony was not relevant to the case.”
2. noun
A challenge or attack on the character or integrity of someone, especially in a public or official context.
“The politician faced a severe impugnment of her personal life in the media.”