14 entries under lethargic topic. ×

13
dull(adjective, smart, active, fast, boring)
7
sad(adjective, dull, happy, joy, glad)
7
inactive(adjective, dull, moving)
5
lifeless(adjective, dull, full, spiritless)
5
sleepy(adjective, dull, alert)
4
heavy(adjective, dull)
3
apathetic(adjective, dull)
2
depressed(adjective, dull)
2
gloomy(adjective, dull, clear, light)
2
unhappy(adjective, dull)
1
down(adjective, dull)
1
dispirited(adjective, dull)
1
somber(adjective, dull, light, bright)
0
unpleasant(adjective, dull)
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APASmart Define. (2015). lively thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/lively/thesaurus/antonyms
ChicagoSmart Define. 2015. "lively thesaurus" https://smartdefine.org/lively/thesaurus/antonyms (accessed September 29, 2026).
HarvardSmart Define 2015, lively thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/lively/thesaurus/antonyms>.
MLASmart Define. "lively thesaurus" 19 December 2015. Web. 29 September 2026. <https://smartdefine.org/lively/thesaurus/antonyms>