Definition of lacklustre adjective from the Oxford Advanced Learner's Dictionary



(especially US English lackluster)adjective
BrE BrE//ˈlæklʌstə(r)//
; NAmE NAmE//ˈlæklʌstər//
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not interesting or exciting; dull a lacklustre performance lacklustre hairExtra examples The minister always appeared lacklustre and undynamic. The vocal soloists were generally lacklustre. There were signs of discontent at the party’s lacklustre performance.