66 entries under adjective topic. ×

2
unconcerned(weak, gentle)
2
unpassionate(dull, hysterical, highpowered, aper)
1
clinical(feeling, dispassionate)
1
detached
1
feeble(weak, gentle)
1
insensible
1
listless
1
phlegmatic
1
placid
1
stolid
1
unexcited(upset, dull, wild, unreasonable)
1
uninterested
1
unruffled
0
dismal
0
dispirited(weak, gentle)
0
easygoing
0
gaunt
0
inactive
0
indolent
0
inert
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APASmart Define. (2015). passionate thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/passionate/thesaurus/antonyms
ChicagoSmart Define. 2015. "passionate thesaurus" https://smartdefine.org/passionate/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2015, passionate thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/passionate/thesaurus/antonyms>.
MLASmart Define. "passionate thesaurus" 17 July 2015. Web. 28 September 2026. <https://smartdefine.org/passionate/thesaurus/antonyms>