Definition of assiduity:
effort, pains, assiduousness, persistence, industrious, diligence, constancy, intentness, tightness, absorption, concentration, exertion, labor, engrossment, attention, patience, denseness, sedulousness, industry, density, immersion, industriousness, compactness, application, perseverance.
As, however, by unwearied assiduity, they seem to have established the fact, to the satisfaction of all the world, that this country has been discovered I shall avail myself of their useful labors to be extremely brief upon this point.- "Knickerbocker's History of New York, Complete", Washington Irving.
- "The Mardi Gras Mystery", H. Bedford-Jones.
He entered cheerfully and earnestly upon his studies, and more than a year was devoted to mathematics; but whenever it was possible he rambled about the country, using his eyes and fingers, collecting more specimens, and 15 sketching with such assiduity that when he left France, only seventeen years old, he had finished two hundred drawings of French birds.- "Story Hour Readings: Seventh Year", E.C. Hartwell.