assiduous [uh-sij-oo-uhs] SynonymsExamplesWord Origin See more synonyms for assiduous on adjective

  1. constant; unremitting: assiduous reading.
  2. constant in application or effort; working diligently at a task; persevering; industrious; attentive: an assiduous student.

Origin of assiduous 1530–40; Latin assiduus, equivalent to assid(ēre) to sit near, beside, dwell close to (see assess) + -uus deverbal adj. suffix; see -ous Related formsas·sid·u·ous·ly, adverbas·sid·u·ous·ness, nounun·as·sid·u·ous, adjectiveun·as·sid·u·ous·ly, adverbun·as·sid·u·ous·ness, nounSynonyms for assiduous See more synonyms for on 1. continuous, tireless, persistent. 2. studious, diligent, sedulous.Antonyms for assiduous 1, 2. inconstant, lazy. Related Words for assiduous diligent, zealous, scrupulous, indefatigable, exacting, laborious, active, attentive, busy, constant, grinding, industrious, persevering, sedulous, steady, studious, unflagging, untiring, whiz, plugging Examples from the Web for assiduous Contemporary Examples of assiduous

  • There has been assiduous woo-ing of the political establishment too.

    Camilla Will Never Be Queen: Prince Charles Capitulates On Website FAQ

    Tom Sykes

    November 12, 2012

  • As an intern at The Nation in 1989, he was an amiable and assiduous fact-checker of my copy.

    Britain’s New Political Dynasty

    Norman Birnbaum

    October 1, 2010

  • But despite her allure, her assiduous assault on New York produced no results.

    How Desiree Landed Her Gig

    Sandra McElwaine

    August 11, 2010

  • His assiduous reporting and his smart, passionate commentary have impressed colleagues and readers alike.

    Introducing Beast Books

    Tina Brown

    January 22, 2010

  • Historical Examples of assiduous

  • Madame Raquin was singularly touched at the assiduous care they took of her.

    Therese Raquin

    Emile Zola

  • I think Samoval is becoming too attentive and too assiduous.

    The Snare

    Rafael Sabatini

  • She was as pleasant as her husband, and I paid her an assiduous court.

    The Memoires of Casanova, Complete

    Jacques Casanova de Seingalt

  • Bellon was an assiduous hackney writer and translator of the day.

    The Works of Aphra Behn

    Aphra Behn

  • William Pyncheon had also a slave who was “assiduous in hangeing.”

    Customs and Fashions in Old New England

    Alice Morse Earle

  • British Dictionary definitions for assiduous assiduous adjective

    1. hard-working; perseveringan assiduous researcher
    2. undertaken with perseverance and careassiduous editing

    Derived Formsassiduously, adverbassiduousness, nounWord Origin for assiduous C16: from Latin assiduus sitting down to (something), from assidēre to sit beside, from sedēre to sit Word Origin and History for assiduous adj.

    1530s, from Latin assiduus “attending; continually present, incessant; busy; constant,” from assidere “to sit down to,” thus “constantly occupied” at one’s work; from ad “to” (see ad-) + sedere “to sit” (see sedentary). The word acquired a taint of “servility” in 18c. Related: Assiduously; assiduousness.

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