127 entries under indifferent topic. ×

1
self-centered(adjective, unsympathetic, inattentive, uninterested)
1
silent(adjective, detached, distant, apathetic)
1
submissive(adjective, quiet, apathetic, lifeless)
1
supercilious(adjective, detached, distant, apathetic)
1
superior(adjective, detached, distant, apathetic)
1
tractable(adjective, quiet, apathetic, lifeless)
1
unassertive(adjective, quiet, apathetic, lifeless)
1
unbiased(adjective, detached, distant, apathetic)
1
uncommunicative(adjective, restrained, detached, distant)
1
unimpressed(adjective, detached, distant, apathetic)
1
uninspired(adjective, unenthusiastic, unconvinced)
1
unprejudiced(adjective, detached, distant, apathetic)
1
unresisting(adjective, quiet, apathetic, lifeless)
1
unsocial(adjective, detached, distant, apathetic)
1
walking through it(expression, adjective, idiom, quiet)
1
yielding(adjective, quiet, apathetic, lifeless)
0
blithe(adjective, unsympathetic, inattentive, uninterested)
0
carefree(adjective, nonchalant, undisturbed, undaunted)
0
cool as cucumber(expression, adjective, idiom, calm, cool)
0
indomitable(adjective, calm, cool, tolerant)
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APASmart Define. (2015). phlegmatic thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/phlegmatic/thesaurus/synonyms
ChicagoSmart Define. 2015. "phlegmatic thesaurus" https://smartdefine.org/phlegmatic/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, phlegmatic thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/phlegmatic/thesaurus/synonyms>.
MLASmart Define. "phlegmatic thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/phlegmatic/thesaurus/synonyms>