The phrase "ardent opponent" means someone who strongly disagrees with and opposes something or someone.
Sentences with «ardent opponent»
The city council member, once the most ardent opponent of the community school, now has a child in Hron's classroom. (educationevolving.org)
But when it comes to portraying Jesus» most ardent opponents — Caiaphas and the angry Jewish crowds most of all, but also the Roman soldiers — Gibson's feel for God's secret reversals eludes him. (religion-online.org)
Even ardent opponents to DeVos found some reasons to feel heartened. (hechingerreport.org)