[zel-uh s]


full of, characterized by, or due to zeal; ardently active, devoted, or diligent.

Origin of zealous

From the Medieval Latin word zēlōsus, dating back to 1520–30. See zeal, -ous
Related formszeal·ous·ly, adverbzeal·ous·ness, nounnon·zeal·ous, adjectivenon·zeal·ous·ly, adverbnon·zeal·ous·ness, nounun·der·zeal·ous, adjectiveun·der·zeal·ous·ly, adverbun·der·zeal·ous·ness, nounun·zeal·ous, adjectiveun·zeal·ous·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for zealously

Contemporary Examples of zealously

Historical Examples of zealously

  • One who is obstinately and zealously attached to an opinion that you do not entertain.

  • Never was an estate kept so zealously private, and, does monsieur know?

    The Avenger

    E. Phillips Oppenheim

  • It was a thing that I had ever most zealously kept hidden, as already I have shown.

    The Shame of Motley

    Raphael Sabatini

  • If you do not work too zealously to save her, your reward will be the heart of him whom you love at last.

    Pretty Madcap Dorothy

    Laura Jean Libbey

  • An hundred servants hedged them about,––hedged them in as zealously as jailers.

    The Web of the Golden Spider

    Frederick Orin Bartlett

British Dictionary definitions for zealously



filled with or inspired by intense enthusiasm or zeal; ardent; fervent
Derived Formszealously, adverbzealousness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for zealously



1520s, from Medieval Latin zelosus (source of Italian zeloso, Spanish celoso), from zelus (see zeal). Related: Zealously, zealousness.

Online Etymology Dictionary, © 2010 Douglas Harper