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

In order to secure the large number of signatures, proponents of initiatives typically hire petition management companies, according to the indictment. — Brittny Mejia, Los Angeles Times, 10 Sep. 2026

Justice Brett Kavanaugh has requested a response from the plaintiffs in the lawsuit — the proponents of the new redistricting map — by Thursday morning. — CBS News, 10 Sep. 2026

Among proponents, there’s also a push to highlight support among Republicans, in part to emphasize that the legislation would not just benefit California and New York. — Dominic Patten, Deadline, 9 Sep. 2026

Kim Turnage, a proponent of expansion, said five commissioners representing five districts would reduce the number of people each commissioner represents from the full county under today’s at-large setup to fewer than 100,000. — John Aguilar, Denver Post, 8 Sep. 2026