0
recession
0
repose
0
sadness(noun, dullness, languor)
0
sameness
0
sloth
0
slowness
0
sorrow(noun, dullness, languor)
0
stagnancy
0
stagnation
0
staleness
0
stillness
0
stupidity
0
tediousness
0
tedium
0
tiresomeness
0
torpidity
0
unhappiness(noun, dullness, languor)
0
vapidity
0
vapidness
0
weariness
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APASmart Define. (2015). effervescence thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/effervescence/thesaurus/antonyms
ChicagoSmart Define. 2015. "effervescence thesaurus" https://smartdefine.org/effervescence/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2015, effervescence thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/effervescence/thesaurus/antonyms>.
MLASmart Define. "effervescence thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/effervescence/thesaurus/antonyms>