0
dubious
0
duller
0
dullness
0
dumb
0
dunderheaded
0
empty-headed
0
fatal
0
fatuous
0
featherheaded
0
feebleminded
0
foggy
0
fool
0
foolish
0
foreboding
0
forlorn
0
frowning
0
funereal
0
futureless
0
glaring
0
glowering
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APASmart Define. (2015). lacklustre thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/lacklustre/thesaurus/related
ChicagoSmart Define. 2015. "lacklustre thesaurus" https://smartdefine.org/lacklustre/thesaurus/related (accessed September 30, 2026).
HarvardSmart Define 2015, lacklustre thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/lacklustre/thesaurus/related>.
MLASmart Define. "lacklustre thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/lacklustre/thesaurus/related>