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Webster's New World College Dictionary » lackluster
lackluster
lackluster definition
lack·lus·ter (lak′lus′tər)
adjective
- lacking brightness; dull lackluster eyes
- lacking energy or vitality; boring, unimaginative, etc. a lackluster performance
noun
Rare absence of brightness; dullness
Also Chiefly Brit.lacklustre lack′·lus′·tre
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