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

To proponents of the new measure, the acquisition would represent a sweetheart deal. — Shomik Mukherjee, Mercury News, 19 July 2026

Bell won the All-Star Race last year and was a massive proponent of North Wilkesboro Speedway landing on the points schedule. — Alex Zietlow july 16, Charlotte Observer, 16 July 2026

Since then, Nolan has been the format’s most steadfast proponent. — Laura Payne, Encyclopedia Britannica, 15 July 2026

And, as in the past in both California and nationally, proponents and opponents of the switch cite the potential effects (good or bad) on health, business and agriculture as reasons to support or oppose the plan. — Iris Kwok, Los Angeles Times, 14 July 2026