What is another word for adverse witness?
Pronunciation: [advˈɜːs wˈɪtnəs] (IPA) 
An adverse witness is a person who testifies against the party who has called them to testify in court. This type of witness can be seen as unfavorable to the defense or prosecution's case and can be challenging to contend against. However, there are numerous synonyms for the term "adverse witness." These include, but are not limited to, unfriendly witness, hostile witness, witness adverse to the party calling them, or adverse party witness. Regardless of the name, an adverse witness poses a particular challenge to any legal proceeding, as achieving a positive outcome requires overcoming the potential testimony of an opposing party.
