Synonyms of proponent

proponent

noun

prə-ˈpō-nənt 

as in advocate

a person who actively supports or favors a cause

a vocal proponent of the use of electric-powered cars

Synonyms & Similar Words

• advocate
• supporter
• advocator
• exponent
• promoter
• friend
• champion
• apostle
• booster
• protagonist
• white knight
• paladin
• expounder
• high priest
• true believer
• tub-thumper
• espouser
• backer
• adherent
• stalwart
• hierophant
• herald
• loyalist
• disciple
• gospeler
• interpreter
• follower
• cheerleader
• encourager
• cohort
• partisan
• fellow traveler
• applauder

Antonyms & Near Antonyms

• opponent
• adversary
• antagonist
• enemy
• foe
• critic
• rival
• faultfinder
• belittler

Example Sentences

Recent Examples of proponent

Curiously, few of these proponents ever mention the New York Mets and their spending. — Ian Miller Outkick, FOXNews.com, 6 Oct. 2026

Petrie was particularly racist, a proponent of dynastic race theory. — Jennifer Ouellette, ArsTechnica, 5 Oct. 2026

Whatever the proponents of a ban were trying to accomplish at a local school district level, its effect on demand often traveled well beyond the district where the books were challenged. — Naveen Basavaraj, The Conversation, 5 Oct. 2026

During the final weeks of the campaign, the initiative’s proponents will have to rely on person-to-person organizing. — Nicholas Lemann, New Yorker, 4 Oct. 2026