
Lacklustre
Emotional Tone
Lacklustre often implies disappointment or a negative reaction to what is considered dull or subpar.

His lacklustre greeting made her rethink the surprise party.
Impression Given
Using 'lacklustre' suggests that something fails to meet expectations or capture interest.

Despite high hopes, the opening act was lacklustre.
Intensity Modifier
'Lacklustre' is often used to describe a moderate level of dullness or lack of enthusiasm, not extreme.

Her response to the proposal was curiously lacklustre.
Compare with
DullExcitingImpressiveLackadaisicalLifelessSpiritlessUninspiredVapid
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