Here are some synonyms for zealous:
* Ardent
* Eager
* Passionate
* Fervent
* Dedicated
* Enthusiastic
* Assiduous
* Vigorous
* Intense
Example:
"She was a zealous advocate for animal rights, spending countless hours lobbying politicians and organizing protests."
Key points about "zealous":
* It often carries a positive connotation, suggesting dedication and passion.
* However, being "zealous" can sometimes be seen as excessive or fanatical, especially if it leads to harmful or unreasonable actions.