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A funny word that only "sophisticated" people use meaning a lack in energy, enthusiasm, or passion.
By my troth, Calpurnius is looking a tad lackluster. Would you concur?
by D-Vo January 25, 2006
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3
Not having the enthusiasm or ability to lust. Not insatiable.
The hottest guy on campus just walked by, and Susan was so lackluster like she didn't even notice.
by ElleS2008 August 07, 2008
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4
An expensive Hollywood film of little consequence or entertainment value that does poorly at the box office--not even as noteworthy as a box office bomb. The antithesis of a blockbuster.
(Film name) was a true {lackluster}.
by Travelingmankc June 08, 2015
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5
Did you return the videos to Lackluster?

I guess it's gonna be a Lackluster night.
by Geenius at Wrok February 29, 2004
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