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lacklustre

UK (US lackluster)
 
 
/ˈlækˌlʌstər/ adjective

Definition

not very good or exciting, or not showing a lot of activity or effort: After a period of lacklustre performance, the company has finally announced some very positive results. The Australian share market closed down slightly after a day of lacklustre trading.
(Definition of lacklustre adjective from the Cambridge Business English Dictionary © Cambridge University Press)

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