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.
unserviceable
(adjective) not ready for service; “unserviceable equipment may be replaced”
unserviceable, unusable, unuseable
(adjective) not capable of being used
Source: WordNet® 3.1
unserviceable (not comparable)
Unusable; of no use.
Synonym: u/s
Not working (machinery, etc).
Impractical.
Source: Wiktionary
26 November 2024
(noun) (music) playing in a different key from the key intended; moving the pitch of a piece of music upwards or downwards
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.