The Collaborative International Dictionary
Assiduous \As*sid"u*ous\, a. [L. assiduus, fr. assid?re to sit near or close; ad + sed[=e]re to sit. See Sit.]
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Constant in application or attention; devoted; attentive; unremitting.
She grows more assiduous in her attendance.
--Addison. -
Performed with constant diligence or attention; unremitting; persistent; as, assiduous labor.
To weary him with my assiduous cries.
--Milton.Syn: Diligent; attentive; sedulous; unwearied; unintermitted; persevering; laborious; indefatigable. [1913 Webster] As*sid"u*ous*ly, adv. -- As*sid"u*ous*ness, n.
Wiktionary
n. conscientious and unremitting diligence.
WordNet
n. great and constant diligence and attention [syn: assiduity, concentration]
Usage examples of "assiduousness".
To the four raging and bewildered thugs who were even then pounding down the stairs to guard their precious car and comb the surrounding meadows, it was as inconceivable as it had been to Inspector Fernack that any man in the Saint's position, with the untrammelled use of his limbs, should be interested in any other diversion than that of boring a hole through the horizon with the utmost assiduousness and dispatch.
He and Zapruder after all are old friends, although they have never spoken he has studied the charts and films so closely, dug through the biographical materials with such assiduousness that he sometimes feels that he knows Zapruder more intimately than anyone with whom he has actually dealt to say nothing of the Masters.
They returned to where the king sat sipping at his wine and the company ate with the self-conscious assiduousness of people who chafe with curiosity but know that their regnant will not tolerate questions.
The place was avoided with doubled assiduousness, and invested with every whispered myth tradition could supply.
They would pursue their investigation with the assiduousness with which the Japanese approached every task.
She spent less and less time at his side, preferring to gossip with her friends, or supervise the servants—or avoid Duncan with such assiduousness that William wanted to laugh.