169 entries under tedious topic. ×

4
hackneyed(adjective, simple, flat, plain, ordinary)
4
jading(adjective, dull, boring, irritating)
4
plain(adjective, dull, quiet, weak, simple)
4
plodding(adjective, dull, heavy, ordinary, boring)
4
stuffy(adjective, dull, flat, excite, heavy)
4
tasteless(adjective, dull, weak, flat, plain)
4
threadbare(adjective, dull, flat, stupid, dry)
4
unimaginative(adjective, dull, simple, flat, plain)
3
dusty(adjective, dull, simple, boring)
3
flavorless(adjective, dull, weak, plain, mild)
3
long-winded(adjective, dull, boring, tiresome)
3
nothing(adjective, dull, weak, simple, plain)
3
ponderous(adjective, dreary)
3
prolix(adjective, flat, ordinary, dry, boring)
3
spiritless(adjective, dull, weak, cold, stupid)
3
treadmill(adjective, dull, boring, routine)
3
unrelieved(adjective, dull, set, boring, constant)
3
weak(adjective, dull, plain, dark, mild)
2
bromidic(adjective, dull, simple, stupid, boring)
2
deadly(adjective, dull, dry, boring)
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APASmart Define. (2015). monotonous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/monotonous/thesaurus/synonyms
ChicagoSmart Define. 2015. "monotonous thesaurus" https://smartdefine.org/monotonous/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, monotonous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/monotonous/thesaurus/synonyms>.
MLASmart Define. "monotonous thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/monotonous/thesaurus/synonyms>