- full of, characterized by, or due to zeal; ardently active, devoted, or diligent.
Origin of zealous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for unzealous
Unzealous, un-zel′us, adj. not zealous, devoid of zeal or fervour.
- filled with or inspired by intense enthusiasm or zeal; ardent; fervent
Word Origin and History for unzealous
1520s, from Medieval Latin zelosus (source of Italian zeloso, Spanish celoso), from zelus (see zeal). Related: Zealously, zealousness.
Online Etymology Dictionary, © 2010 Douglas Harper