212 entries under adjective topic. ×

1
lifeless(dull, dry, boring, tedious)
1
long-drawn-out
1
longwinded(flat, stupid, ordinary, dry)
1
loutish
1
lulling(tired, lethargic, sleepy, dazed)
1
mechanical
1
mesmeric
1
mind-numbing(dull, dry, boring, tedious)
1
nothing(dull, flat, boring, tedious)
1
obtuse
1
oft-repeated(flat, stupid, ordinary, dry)
1
ordinary(flat, dry, boring, tedious)
1
out(dull, quiet, slow, heavy)
1
out-of-date(flat, stupid, ordinary, dry)
1
plain(flat, stupid, ordinary, dry)
1
pointless(flat, stupid, ordinary, dry)
1
prolix(flat, stupid, ordinary, dry)
1
puts one to sleep(expression, idiom, dull, boring)
1
recurrent(dull, flat, boring, tedious)
1
reiterated(dull, flat, boring, tedious)
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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>