4
middle man(business, person, agent, representative)
4
third party(noun, expression, idiom)
4
ump(noun, sport, judge, decide, referee)
3
critic(noun, judge)
3
diplomat(noun, representative, delegate, mediator, speaker)
3
intermediate
3
intermediator
3
pacifier(noun, mediator, intermediary, negotiator, go-between)
3
reconciler(noun, judge)
2
administrator(noun, judge, mediator, magistrate, go-between)
2
agent
2
appeaser(noun, mediator, intermediary, negotiator, diplomat)
2
authority(noun, judge)
2
connection
2
decider
2
expert(noun, judge)
2
his honor
2
holdout(noun, settler)
2
interagent
2
intermedium
11 years ago|6.1k views|share |citing 
APASmart Define. (2015). arbitrator thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/arbitrator/thesaurus/synonyms
ChicagoSmart Define. 2015. "arbitrator thesaurus" https://smartdefine.org/arbitrator/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, arbitrator thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/arbitrator/thesaurus/synonyms>.
MLASmart Define. "arbitrator thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/arbitrator/thesaurus/synonyms>