255 entries under adjective topic. ×

1
mooney(dull, slow, heavy, sluggish)
1
muffled(soft, obscure, flat, dark)
1
nebbish(dull, weak, easy, slow)
1
obscure(dull, soft, flat, dark)
1
off(dull, slow, heavy, sluggish)
1
opaque(dull, soft, obscure, flat)
1
oyster(dull, lead, grim, mousy)
1
pabulum(dull, flat, boring, lifeless)
1
peppery(dull, lead, grim, mousy)
1
pining(dull, weak, easy, slow)
1
pokey(dull, slow, heavy, sluggish)
1
powder(dull, lead, grim, mousy)
1
prosaic(dull, flat, boring, lifeless)
1
relaxed
1
sere(dull, lead, grim, mousy)
1
shaded(dull, lead, grim, mousy)
1
slate(dull, lead, grim, mousy)
1
sleepyhead(dull, weak, easy, slow)
1
sleepyheaded(dull, slow, heavy, sluggish)
1
slow-moving(dull, quiet, moderate, easy)
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APASmart Define. (2015). leaden thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/leaden/thesaurus/synonyms
ChicagoSmart Define. 2015. "leaden thesaurus" https://smartdefine.org/leaden/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, leaden thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/leaden/thesaurus/synonyms>.
MLASmart Define. "leaden thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/leaden/thesaurus/synonyms>