103 entries under adjective topic. ×

1
actual(simple, clean, plain, ordinary)
1
aseptic
1
banal(simple, flat, clean, plain)
1
clean(simple, plain, ordinary, straightforward)
1
diddly(bad, simple, clean, plain)
1
draggy(dull, flat, boring, lifeless)
1
duller
1
empty(dull, dead, impassive, unresponsive)
1
factual(simple, flat, clean, plain)
1
fish-eyed(dull, dead, impassive, unresponsive)
1
garden-variety(simple, flat, clean, plain)
1
hackneyed(simple, clean, plain, ordinary)
1
ho-hum(dull, bad, simple, flat)
1
humdrum(dull, simple, clean, plain)
1
inactive
1
inexpressive(dull, dead, impassive, unresponsive)
1
irksome(simple, flat, clean, plain)
1
laid back(expression, boring, lifeless, puny)
1
literal(simple, flat, clean, plain)
1
lowly(simple, clean, plain, ordinary)
11 years ago|5.1k views|share |citing 
APASmart Define. (2015). lusterless thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/lusterless/thesaurus/synonyms
ChicagoSmart Define. 2015. "lusterless thesaurus" https://smartdefine.org/lusterless/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, lusterless thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/lusterless/thesaurus/synonyms>.
MLASmart Define. "lusterless thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/lusterless/thesaurus/synonyms>