Synonyms of arbitrator

arbitrator

noun

ˈär-bə-ˌtrā-tər 

as in referee

a person who impartially decides or resolves a dispute or controversy

the couple finally agreed to let the salesclerk be the final arbitrator and tell them which shirt looked best

Synonyms & Similar Words

• referee
• judge
• umpire
• arbiter
• negotiator
• moderator
• magistrate
• adjudicator
• jurist
• mediator
• intermediary
• conciliator
• peacemaker
• justice
• intermediate
• mediatrix
• reconciler
• troubleshooter
• decider
• go-between

Example Sentences

Recent Examples of arbitrator

The Blue Jackets and Greaves can avoid that hearing by reaching terms on a new contract any time between now and the point at which the arbitrator begins deliberating after hearing both sides’ arguments. — Aaron Portzline, New York Times, 20 July 2026

Rather than implementing the judgment, the city argued the parties’ new collective bargaining agreement superseded parts of the arbitration award because it was negotiated after the arbitrator issued his decision. — Ben Wheeler, Kansas City Star, 10 July 2026

An arbitrator ruled that Prime’s work on a gene-editing drug for the rare liver disease alpha-1 antitrypsin deficiency, or AATD, did not violate a 2019 agreement designed to prevent the two companies from competing against one another. — Jason Mast, STAT, 8 July 2026

Last year, an arbitrator ruled against the director, according to court filings. — Winston Cho, HollywoodReporter, 29 June 2026