5
tired(adjective, dull, flat, ordinary, dry)
5
trite(adjective, dull, simple, flat, plain)
5
undeviating(adjective, quiet, soft, gentle, flat)
5
uninterrupted(adjective, quiet, soft, gentle, flat)
5
wearing(adjective, dull, boring, tedious, irritating)
4
average(adjective, simple, reasonable, sensible, restrained)
4
banausic(adjective, dull, heavy, ordinary, boring)
4
chronic(adjective, regular, persistent, continuous, endless)
4
conventional(adjective, dull, weak, simple, ordinary)
4
depressing(adjective, dull, gloomy, miserable, boring)
4
dim(adjective, dull, weak, dark, heavy)
4
dismal(adjective, dull, flat, gloomy, miserable)
4
familiar(adjective, dull, flat, ordinary, dry)
4
hackneyed(adjective, simple, flat, plain, ordinary)
4
jading(adjective, dull, boring, tedious, irritating)
4
measured(adjective, calm, soft, reasonable, gentle)
4
plain(adjective, dull, quiet, weak, simple)
4
plodding(adjective, dull, heavy, ordinary, boring)
4
singsong
4
smooth(adjective, weak, flat, plain, level)
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APASmart Define. (2015). monotonous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/monotonous/thesaurus/synonyms
ChicagoSmart Define. 2015. "monotonous thesaurus" https://smartdefine.org/monotonous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, monotonous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/monotonous/thesaurus/synonyms>.
MLASmart Define. "monotonous thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/monotonous/thesaurus/synonyms>