1
unexceptional(adjective, simple, clean, plain, ordinary)
1
unexpressive(adjective, dull, dead, impassive, unresponsive)
1
unimaginative(adjective, dull, simple, flat, excite)
1
uninspired(adjective, dull, flat, excite, boring)
1
uninspiring(adjective, dull, bad, simple, clean)
1
vacuous(adjective, dull, dead, impassive, unresponsive)
1
vanilla(adjective, dull, simple, flat, clean)
1
vapid(adjective, dull, simple, flat, clean)
1
waxen
1
whey-faced
1
wooden(adjective, dull, dead, stiff, sluggish)
1
workaday(adjective, bad, simple, clean, plain)
1
yawn(adjective, simple, flat, clean, plain)
1
yawner
1
zero(adjective, dull, simple, flat, clean)
0
all in(expression, beat, exhausted, drained)
0
anodyne(weak, feeble, lackluster)
0
bad
0
beat(exhausted, drained)
0
bedraggled(distressed, worn, stonewashed)
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APASmart Define. (2015). lusterless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/lusterless/thesaurus/synonyms
ChicagoSmart Define. 2015. "lusterless thesaurus" https://smartdefine.org/lusterless/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, lusterless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/lusterless/thesaurus/synonyms>.
MLASmart Define. "lusterless thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/lusterless/thesaurus/synonyms>