fervent w języku angielskim

fervent▼◼◼◼(exhibiting particular enthusiasm, zeal, conviction, persistence, or belief)
adjective
[UK: ˈfɜː.vənt] [US: ˈfɝː.vənt]

staunch [stauncher, staunchest]▼◼◼◼(loyal, trustworthy, reliable)
adjective
[UK: stɔːntʃ] [US: ˈstɒntʃ]John is a staunch conservative. = John est un fervent conservateur.

ardent▼(full of ardour)
adjective
[UK: ˈɑːdnt] [US: ˈɑːr.dənt]