lackluster, (British) lacklustre
/AmE ˈlækˌləstər 
, BrE ˈlaklʌstə /
adjective
1 (mediocre) ‹performance/campaign› deslucido; ‹candidate› mediocre
2 (dull) ‹eyes› apagado, sin brillo; ‹hair› opaco, sin brillo
lackluster
English → Spanish
Oxford English–Spanish