186 entries under tedious topic. ×

9
fatiguing(adjective, boring, irritating, exasperating)
9
lackluster(adjective, light, simple, flat, excite)
9
prosy(adjective, weak, simple, tough, plain)
9
stuffy(adjective, flat, excite, warm, heavy)
8
prolix(adjective, loose, dry, boring)
8
repetitious(adjective, hard, stupid, dry, boring)
8
usual(adjective, ordinary, boring, uninteresting, quiet)
8
wishy-washy(adjective, light, weak, soft, plain)
7
pointless(adjective, weak, simple, sharp, slow)
7
exhausting(adjective, boring, irritating, exasperating)
7
stock(adjective, set, flat, silly, common)
7
stodgy(adjective, flat, excite, warm, plain)
6
blind(verb, adjective, weak, see, flat)
6
ashen(adjective, quiet, light, soft, flat)
6
characterless(adjective, mean, weak, stupid, ordinary)
6
long-winded(adjective, loose, boring, endless)
6
threadbare(adjective, set, beat, hard, flat)
6
toneless(adjective, deep, boring, routine)
6
wearing(adjective, boring, irritating, exasperating)
6
white(verb, adjective, light, soft, flat)
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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>