74 entries under lethargic topic. ×

6
slothful(adjective, dull, quiet, easy, slow)
6
supine(adjective, dull, quiet, weak, easy)
6
unhurried(adjective, dull, weak, easy, slow)
5
benumbed
5
drugged
5
slack(adjective, dull, quiet, moderate, easy)
5
spiritless(adjective, action, dull, weak, easy)
4
drooping(adjective, dull, relaxed, sluggish, lazy)
4
inanimate(adjective, dull, still, sluggish, lifeless)
4
sullen(adjective, dull, slow, dark, heavy)
4
tired
3
insensible
3
lymphatic(adjective, action, dull, weak, easy)
3
stagnant(adjective, dull, quiet, moderate, easy)
2
blah(adjective, dull, weak, easy, flat)
2
bored(adjective, dull, sluggish, limp)
2
draggy(adjective, dull, flat, slow, heavy)
2
hebetudinous(adjective, dull, slow, heavy, apathetic)
2
limp(adjective, action, dull, weak, easy)
2
neutral(adjective, dull, lead, grim, sluggish)
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APASmart Define. (2015). leaden thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/leaden/thesaurus/synonyms
ChicagoSmart Define. 2015. "leaden thesaurus" https://smartdefine.org/leaden/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, leaden thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/leaden/thesaurus/synonyms>.
MLASmart Define. "leaden thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/leaden/thesaurus/synonyms>