Lacklustre – Not promising or exciting, or not showing a lot of activity or effort

(Pronounced lak-luhs-ter)

To remember the definition of the word lacklustre, use the following mnemonic:

He lacked a duster (lacklustre) so everything remained dull and he certainly lacked the energy.

Examples of lacklustre in a sentence

The festival ended up being a lacklustre and disappointing event due to many of the headline acts cancelling their performances last minute. 

After a lacklustre presentation, the potential investors all refused to support his new business idea.

Lacklustre was the best way to describe her cooking, every single one of her recipes was bland and uninteresting.