1
ho-hum(adjective, dull, bad, simple, flat)
1
ho hum
1
humdrum(adjective, dull, simple, clean, plain)
1
hypochromic
1
impenetrable
1
inactive
1
inexpressive(adjective, dull, dead, impassive, unresponsive)
1
irksome(adjective, simple, flat, clean, plain)
1
laid back(expression, adjective, boring, lifeless, puny)
1
literal(adjective, simple, flat, clean, plain)
1
lowly(adjective, simple, clean, plain, ordinary)
1
lurid
1
matter-of- fact(expression, adjective, simple, clean, plain)
1
matter-of-fact(adjective, excite)
1
matter of fact(expression, adjective, idiom, bad, clean)
1
mealy
1
muddied
1
murky(shabby, dense, distressed, cloudy, dismal)
1
nobody home(expression, adjective, dull, dead, impassive)
1
nontranslucent
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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>