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

Data center proponents generally argue that the facilities will provide jobs and sustain the American lead in the global AI race. — Maggie Harrison Dupré, Futurism, 29 Oct. 2026

Regalado, the Miami-Dade property appraiser, has been a vocal proponent of Amendment 3. — Max Klaver, Miami Herald, 28 Oct. 2026

Some proponents of tighter regulation will accept incremental progress, while others push for more sweeping change. — Barbara A. Trish, The Conversation, 26 Oct. 2026

Peters rose to internet prominence as a proponent of looksmaxxing, a trend related to extreme measures to improve one’s physical appearance. — Tracy Brown, Los Angeles Times, 22 Oct. 2026