proponent
0 antonyms and opposites of proponent, grouped by meaning.
Noun — One who supports something; an advocate.
We haven't recorded synonyms for proponent yet. You can still read its full definition, where it comes from, or words that rhyme with it.
Etymology
From Latin prōpōnēns, present participle of prōpōnō (“to put forward; propose”).
Full origin of proponent →