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

Cooper has been a strong proponent of measures to limit climate change in the past, but has not vocally supported the Green New Deal. — Maydeen Merino, The Washington Examiner, 15 Oct. 2026

The rift between these tribes was on full display last month as the main opponent of the constitutional question claimed election malfeasance by proponents of A-83. — Andrew McKean, Outdoor Life, 15 Oct. 2026

But proponents of Propositions 134 and 135 say some of Colorado's laws go too far. — Shaun Boyd, CBS News, 15 Oct. 2026

That’s the argument that Flock makes, and that proponents of this technology make. — Nilay Patel, The Verge, 15 Oct. 2026