zealous
full of energetic devotion
Roots
- -ous / -ious: full of or marked by a quality
- zel / zeal: zeal, ardor, or eager devotion
Other words with the zel / zeal root
Zealous means full of zeal: devotion with energy behind it.
The zealous volunteer knocked on doors long after everyone else went home.
Zealous can be admirable or exhausting. The useful image is heat plus commitment: someone cares so much that the care starts moving their body, schedule, voice, and choices.