Synonyms and Antonyms of middleman
- the retired statesman is often asked to be a middleman in international disputes
bargainer, negotiant, negotiator
appeaser, pacificator, pacifier, reconciler
agent, attorney, deputy, factor, procurator, proxy
ambassador, emissary, envoy, legate, messenger
arbiter, arbitrator, judge, referee, umpire
adviser (also advisor), counselor (or counsellor)