The word "zealous" means feeling or showing strong and energetic support for a person or cause. It is an adjective usually used to explain the excitement of a person or a crowd.
Zealous can also be defined as devoted, diligent, filled with zeal or ardently active. The word zealous originated in the early 16th century. Zealous is derived from the Latin word zelosus.
A good example of the word zealous used in a sentence is, "The crowd was zealous over their home football team winning the championship game."
Here are some examples of synonyms for the word zealous: