Synonyms of 'protagonist'
1 supporterDictionary, leader, championan active protagonist of his country's membership of the EU
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An advocate of a particular action or plan is someone who recommends it publicly.
He was a strong advocate of free market policies.
a leading exponent of genetic engineering
Thesaurus for protagonist from the Collins English Thesaurus
Someone who is a protagonist of an idea or movement is a supporter of it.