0
adopter
0
advisor
0
advocator
0
aider
0
apostle
0
approver
0
assistant
0
assister
0
attendant
0
backer(noun, supporter)
0
benefactor(noun, donor)
0
bolsterer
0
booster
0
brother
0
buddy
0
buff
0
campaigner
0
champion
0
coadjutor
0
cohort
11 years ago|662 views|share |citing 
APASmart Define. (2015). opposer thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/opposer/thesaurus/antonyms
ChicagoSmart Define. 2015. "opposer thesaurus" https://smartdefine.org/opposer/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, opposer thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/opposer/thesaurus/antonyms>.
MLASmart Define. "opposer thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/opposer/thesaurus/antonyms>