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

Alonso, a modern proponent of functional design, has also collaborated with the house of Hermès. — Sofia Celeste, Footwear News, 24 Sep. 2026

These early proponents of quantum biology sought explanations for the puzzling properties of life at the classical scale in the counterintuitive laws of physics at the quantum scale. — Elise Cutts, Quanta Magazine, 23 Sep. 2026

For its proponents, a country could not be fully independent while its resources and institutions remained excessively dependent on decisions made elsewhere. — Andre Pagliarini, The Conversation, 22 Sep. 2026

The committee would reportedly include OMB director and Project 2025 proponent Russell Vought and NIH head Jay Bhattacharya. — Jackie Flynn Mogensen, Scientific American, 21 Sep. 2026