- 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 zealousness
In his zealousness Mr. Dolman might anger her husband, then his logic would avail little.Thoroughbreds
W. A. Fraser
Into eyes and lips alike came something else—something touched with the zealousness of aspiration.When 'Bear Cat' Went Dry
Charles Neville Buck
With these two cold, stern men to nod approval at his zealousness, he went to greater lengths than he might otherwise have done.Joel: A Boy of Galilee
Annie Fellows Johnston
- filled with or inspired by intense enthusiasm or zeal; ardent; fervent
Word Origin and History for zealousness
1520s, from Medieval Latin zelosus (source of Italian zeloso, Spanish celoso), from zelus (see zeal). Related: Zealously, zealousness.
Online Etymology Dictionary, © 2010 Douglas Harper