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Showing or characterized by persistent attention or untiring application: an assiduous worker who strove for perfection; did assiduous research before writing the book. See Synonyms at diligent.

[From Latin assiduus, from assidēre, to attend to : ad-, ad- + sedēre, to sit; see sed- in Indo-European roots.]

as·sid′u·ous·ly adv.
as·sid′u·ous·ness n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.assiduousness - great and constant diligence and attentionassiduousness - great and constant diligence and attention
industriousness, diligence, industry - persevering determination to perform a task; "his diligence won him quick promotions"; "frugality and industry are still regarded as virtues"
intentness, engrossment - the quality of being intent and concentrated; "the intentness of his gaze"
singleness - the quality of concentrating on one central objective; "his singleness of purpose"


Steady attention and effort, as to one's occupation:


References in periodicals archive ?
The term 'draft dodging' is a characterization that does not reflect any legal category, but rather somebody's view of the assiduousness and honesty with which a draft registrant seeks to avoid service," Michael Tigar, a professor of law emeritus at Duke Law School and the author of an analysis on the Selective Service System, (http://www.
By giving the impression that the police want to take every case to trial, the department can promote its own reputation for assiduousness without having to do additional work.
Echoing other Robinsonades, Moses's assiduousness can be seen as a sustaining virtue in itself, and at some level Moses believes this.
We need to see our government demonstrate zero tolerance for corruption, and go after all offenders, regardless of political color, with the same assiduousness as with the campaign against illegal drugs.
We would believe in her assiduousness if only we could bring ourselves to recognize as arduous exertion posing naked for photo shoots, choosing between the so-called "Kimoji" (or emoticons, keyboard graphics) that her "team" created for her, sniffing the scents that her perfumers designed for her ("voluptuous floral fragrances with a warm sensual dry-down"), or sitting still in her beauty parlor chair as her "glam squad" swarms around her tresses like the guardian sylphs who flit about Belinda's imperiled ringlets in "The Rape of the Lock.
The pressure to present new, unmediated materials leads to a strange assiduousness in Wordsworth's annotations to the 1800 second volume, which is seen first in the sheer proliferation of footnotes (eleven to 1798's five), ranging from the mildly helpful to the oddly obtrusive.
Movement artists in Puerto Rico were inspired by Segarra for her assiduousness.
The results were the outcome of assiduousness and promises of the students and the strong support from their families along with the diligent efforts of teachers, said the school authorities.
Peter plots with the assiduousness of the young chess player he once was and sticks to short chapters, reasoning that if most people are like him, they read in bed and are put off by long ones.
The assiduousness of PTV and maintained attempts has resulted in well and creative programming with important alters in appearance style.
It is for this paradoxical combination of assiduousness and velocity that he became a favorite of Impressionist scholarship only belatedly, after 1970, with the rise of sociocultural analysis and the parallel retreat of high-modernist aesthetics, and many of his paintings remain today in private hands.