5
undecided(adjective, indifferent, unenthusiastic)
4
bland(adjective, weak, smooth, soft, gentle)
4
careless(adjective, calm, dull, cool, relaxed)
4
chill(cool, indifferent, restrained, reserved, unemotional)
4
cold-blooded(adjective, mean, hard, cool, temper)
4
detached(adjective, calm, cool, relaxed, indifferent)
4
half-baked
4
icy(adjective, mean, hard, cool, temper)
4
insensible(adjective, temper, cold, indifferent, negative)
4
languid(adjective, dull, warm, indifferent, apathetic)
4
limp(adjective, dull, sluggish, lethargic, languid)
4
passive(adjective, indifferent, listless, lethargic, languid)
4
temperate(adjective, calm, dull, weak, smooth)
4
uncertain(adjective, indifferent, unenthusiastic)
4
unfrozen(adjective, heat)
4
weak(adjective, smooth, pleasant, gentle, temperate)
4
wishy-washy(adjective, indifferent, unenthusiastic, feebleness)
3
apathetical(adjective, temper, cold, negative, behave)
3
blood-warm(adjective, warm, heated, warmish)
3
callous(adjective, calm, mean, hard, cool)
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APASmart Define. (2016). lukewarm thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/lukewarm/thesaurus/synonyms
ChicagoSmart Define. 2016. "lukewarm thesaurus" https://smartdefine.org/lukewarm/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, lukewarm thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/lukewarm/thesaurus/synonyms>.
MLASmart Define. "lukewarm thesaurus" 14 March 2016. Web. 24 September 2026. <https://smartdefine.org/lukewarm/thesaurus/synonyms>