There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.
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
diligent (comparative more diligent, superlative most diligent)
Performing with industrious concentration; hard-working and focused.
• 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
2 July 2025
(noun) getting something back again; “upon the restitution of the book to its rightful owner the child was given a tongue lashing”
There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.