zealous

This is especially true for converts, who tend to be more zealous than people who are born into a given religion or faith tradition.

He is speaking directly to his most zealous supporters on the Christian right who feel alienated from mainstream American society and view secular society as the enemy.

Ludwig II of Bavaria was a zealous aesthete with enough personal wealth to treat part of what is now Germany as an architectural canvas.

Lambasting his creative choices, and silently judging the one-hour-photo employee who calls his shots “pretty,” Scorsese good-naturedly mocked the zealous dedication he brought to his movies.

The controversy has caused his supporters to rally around him, praising his performance and the zealous way in which he has championed the president’s causes.