He is an assiduous A student, terrified of being drafted should he fall behind.
From the boston.com
Renaissance has been assiduous in its production and packaging down the years.
From the nzherald.co.nz
The answer lay in Coward's assiduous cultivation of a carefully crafted image.
From the en.wikipedia.org
I doubt the most assiduous philosopher would find much grain among the chaff.
From the guardian.co.uk
He is anxious to find new work and is assiduous about searching for openings.
From the guardian.co.uk
In fact, neither Iraqis nor Afghans are particularly assiduous mosque-goers.
From the smallwarsjournal.com
We were probably more assiduous than was necessary but there are many wines to assess.
From the thisislondon.co.uk
I call Miss Moneypenny, British spy chief M's assiduous secretary, on my portable radio.
From the businessweek.com
Google then spits out a bunch of links to Web definitions for assiduous.
From the online.wsj.com
More examples
Marked by care and persistent effort; "her assiduous attempts to learn French"; "assiduous research"; "sedulous pursuit of legal and moral principles"
(assiduously) with care and persistence; "she worked assiduously on the senior thesis"
(assiduousness) assiduity: great and constant diligence and attention
Diligence is a zealous and careful nature in one's actions and work, exemplified by a decisive work ethic, budgeting of one's time, monitoring one's own activities to guard against laziness, and putting forth full concentration in one's work. Diligence is usually promoted in work places. ...
Hard-working, diligent or regular (in attendance or work); industrious
(assiduousness) Conscientious and unremitting diligence
(Assiduousness) Unceasing; persistent; diligent
(adj.) hard-working, diligent (The construction workers erected the skyscraper during two years of assiduous labor.)
Working with constant, persistent attention; unremitting