12
lethargy(noun, inactivity, fatigue, lethargy, inertia)
10
languor(noun, inactivity, fatigue, lethargy, inertia)
10
motionlessness(noun, calm, rest, rigidity, stillness)
10
sluggishness(noun, rest, inactivity, fatigue, lethargy)
10
torpor(noun, inactivity, fatigue, lethargy, inertia)
9
listlessness(noun, inactivity, fatigue, lethargy, inertia)
9
inactivity(noun, calm, rest, inactivity, fatigue)
8
apathy(noun, inactivity, fatigue, lethargy, inertia)
8
dullness(noun, excite, depression, lack, routine)
8
stillness(noun, calm, rest, inactivity, immobility)
7
deadness(noun, destruction, routine, dullness, death)
7
idleness(noun, calm, inactivity, fatigue, lethargy)
7
inertness(noun, calm, rest, fatigue, rigidity)
7
laziness(noun, inactivity, fatigue, lethargy, inertia)
6
passivity(noun, lethargy, inertness)
6
sleepiness(noun, inactivity, fatigue, lethargy, inertia)
5
dryness(noun, excite, depression, lack, routine)
5
inanimateness
5
indolence(noun, inactivity, fatigue, lethargy, inertia)
5
inertia(noun, rest, inactivity, fatigue, lethargy)
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APASmart Define. (2015). lifelessness thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/lifelessness/thesaurus/synonyms
ChicagoSmart Define. 2015. "lifelessness thesaurus" https://smartdefine.org/lifelessness/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, lifelessness thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/lifelessness/thesaurus/synonyms>.
MLASmart Define. "lifelessness thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/lifelessness/thesaurus/synonyms>