212 entries under adjective topic. ×

1
run-of-the-mill(flat, stupid, ordinary, dry)
1
samely(dull, flat, boring, tedious)
1
senseless
1
sing-song(dull, flat, boring, tedious)
1
sleeping(dull, quiet, slow, heavy)
1
slumbersome(dull, quiet, slow, heavy)
1
slumbrous(effect, affect, characteristics)
1
stale(dull, flat, ordinary, dry)
1
stock(flat, stupid, ordinary, dry)
1
stupefacient
1
stuporific
1
swooning
1
tame(flat, stupid, ordinary, dry)
1
thick-witted
1
toneless(dull, boring, tedious, dreary)
1
trance-like
1
trite(dull, flat, stupid, ordinary)
1
unchanged(dull, flat, boring, tedious)
1
unchanging(dull, flat, boring, tedious)
1
unending
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APASmart Define. (2015). soporific thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/soporific/thesaurus/synonyms
ChicagoSmart Define. 2015. "soporific thesaurus" https://smartdefine.org/soporific/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, soporific thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/soporific/thesaurus/synonyms>.
MLASmart Define. "soporific thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/soporific/thesaurus/synonyms>