87 entries under adjective topic. ×

13
dull(smart, active, fast, boring)
9
boring
7
sad(dull, happy, joy, glad)
7
inactive(dull, moving, lethargic)
6
blue(feeling, happiness)
6
lethargic(dull, energetic, sluggish, lazy)
6
listless(energy, energetic, spiritless)
5
lifeless(dull, full, lethargic, spiritless)
5
inert(moving, lifeless)
5
lackluster(noun, dull, lifeless)
5
monotonous
5
sleepy(dull, alert, lethargic)
4
arid(uninterested, productive, spiritless)
4
heavy(dull, lethargic)
3
idle
3
apathetic(dull, lethargic)
3
humdrum(boring, uneventful)
3
languid(dull, listless, drooping)
3
lazy(sluggish, inactive)
3
sluggish
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APASmart Define. (2015). lively thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/lively/thesaurus/antonyms
ChicagoSmart Define. 2015. "lively thesaurus" https://smartdefine.org/lively/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2015, lively thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/lively/thesaurus/antonyms>.
MLASmart Define. "lively thesaurus" 19 December 2015. Web. 25 September 2026. <https://smartdefine.org/lively/thesaurus/antonyms>