4
reserved(adjective, cool, unfriendly, blank, aloof)
4
resigned(quiet, gentle, humble, subdued, submissive)
4
slow(adjective, dull, weak, easy, relaxed)
4
stiff(adjective, dull, hard, careless, indifferent)
4
stodgy(adjective, dull, flat, excite, stupid)
4
supine(adjective, dull, weak, easy, slow)
4
tepid(adjective, dull, warm, indifferent, boring)
4
undemonstrative(adjective, cool, unfriendly, aloof, distant)
4
unhappy(adjective, blue, happy, sad, miserable)
4
uninterested(adjective, dull, weak, easy, slow)
4
unmotivated
4
unmoved(adjective, cool, sad, indifferent, depressed)
4
unsusceptible(adjective, hard, careless, indifferent, cruel)
4
unsympathetic(adjective, dull, quiet, hard, cool)
4
vulnerable
4
wishy-washy(adjective, dull, quiet, weak, gentle)
3
acquiescent(adjective, quiet, gentle, humble, subdued)
3
bland(adjective, calm, dull, weak, kind)
3
bleak(adjective, sad, unhappy, miserable, hopeless)
3
broken(adjective, depressed)
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APASmart Define. (2015). spiritless thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/spiritless/thesaurus/synonyms
ChicagoSmart Define. 2015. "spiritless thesaurus" https://smartdefine.org/spiritless/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, spiritless thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/spiritless/thesaurus/synonyms>.
MLASmart Define. "spiritless thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/spiritless/thesaurus/synonyms>