DILIGENT
diligent
(adjective) characterized by care and perseverance in carrying out tasks; “a diligent detective investigates all clues”; “a diligent search of the files”
diligent, persevering
(adjective) quietly and steadily persevering especially in detail or exactness; “a diligent (or patient) worker”; “with persevering (or patient) industry she revived the failing business”
Source: WordNet® 3.1
Etymology
Adjective
diligent (comparative more diligent, superlative most diligent)
Performing with industrious concentration; hard-working and focused.
Synonyms
• See also industrious
Source: Wiktionary
Dil"i*gent, a. Etym: [F. diligent, L. diligens, -entis, p. pr. of
diligere, dilectum, to esteem highly, prefer; di- = dis- + legere to
choose. See Legend.]
1. Prosecuted with careful attention and effort; careful;
painstaking; not careless or negligent.
The judges shall make diligent inquisition. Deut. xix. 18.
2. Interestedly and perseveringly attentive; steady and earnest in
application to a subject or pursuit; assiduous; industrious.
Seest thou a man diligent in his business he shall stand before
kings. Prov. xxii. 29.
Diligent cultivation of elegant literature. Prescott.
Syn.
– Active; assiduous; sedulous; laborious; persevering; attentive;
industrious.
Source: Webster’s Unabridged Dictionary 1913 Edition