438 entries under adjective topic. ×

5
sad(blue, low, happy, unhappy)
5
slack(dull, quiet, flat, heavy)
5
slothful(dull, sad, careless, indifferent)
5
soft(dull, quiet, weak, kind)
5
sterile(dull, excite, boring, uninteresting)
5
tedious(dull, weak, stupid, boring)
5
uninteresting(dull, weak, flat, cold)
5
unresponsive(dull, quiet, hard, cool)
5
wooden(dull, quiet, cool, flat)
4
characterless(dull, weak, stupid, feeble)
4
colourless
4
defunct(dull, cold, lifeless, late)
4
desolate
4
disheartened(blue, low, sad, unhappy)
4
docile(calm, quiet, kind, smooth)
4
drab(dull, weak, excite, stupid)
4
droopy(sad, unhappy, miserable, depressed)
4
half-hearted(careless, relaxed, indifferent, apathetic)
4
heavy(dull, quiet, weak, easy)
4
hopeless
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APASmart Define. (2015). spiritless thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/spiritless/thesaurus/synonyms
ChicagoSmart Define. 2015. "spiritless thesaurus" https://smartdefine.org/spiritless/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, spiritless thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/spiritless/thesaurus/synonyms>.
MLASmart Define. "spiritless thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/spiritless/thesaurus/synonyms>