186 entries under tedious topic. ×

5
deadly(adjective, dry, boring, dreary)
5
hard(adjective, severe, boring, serious)
5
inane(adjective, weak, simple, careless, silly)
5
pallid(adjective, quiet, beat, light, soft)
5
plodding(adjective, obscure, slow, heavy, ordinary)
5
repetitive(adjective, dry, boring, dreary)
5
wordy(adjective, loose, boring, prolix)
4
wan(adjective, quiet, light, weak, soft)
4
bromidic(adjective, set, flat, silly, common)
4
draggy(adjective, quiet, weak, flat, low)
4
familiar(adjective, mean, common, ordinary, dry)
4
hoary(adjective, dry, boring, monotonous)
4
interminable(adjective, flat, stupid, dry, dead)
4
jading(adjective, boring, irritating, exasperating)
4
laborious(adjective, heavy, boring, dreary)
4
lengthy(adjective, slow, loose, protracted)
4
matte(adjective, weak, flat, gloomy, dead)
4
mindless(adjective, simple, slow, careless, silly)
4
monotone(adjective, dark, gloomy, ordinary, boring)
4
sapless(adjective, weak, plain, mild, boring)
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APASmart Define. (2016). dull thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/dull/thesaurus/synonyms
ChicagoSmart Define. 2016. "dull thesaurus" https://smartdefine.org/dull/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, dull thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/dull/thesaurus/synonyms>.
MLASmart Define. "dull thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/dull/thesaurus/synonyms>