186 entries under tedious topic. ×

23
heavy(adjective, upset, quiet, severe, warm)
22
vapid(adjective, boring, uninteresting, flat)
21
dingy(adjective, characteristic, flat, dark, gloomy)
20
commonplace(noun, adjective, set, hard, simple)
20
jejune(noun, adjective, set, weak, kind)
20
ordinary(adjective, common, boring, usual, commonplace)
17
unimaginative(adjective, simple, tough, flat, excite)
16
soporific(noun, adjective, quiet, dry, boring)
15
ho-hum(adjective, simple, flat, plain, ordinary)
15
mundane(adjective, boring, simple, ordinary)
15
plain(adjective, weak, simple, tough, flat)
15
sad(adjective, unhappy, dark, black, gloom)
15
spiritless(adjective, quiet, weak, kind, soft)
15
stale(adjective, set, hard, weak, simple)
14
colorless(adjective, beat, light, weak, simple)
14
damp(verb, adjective, upset, trouble, quiet)
14
somber(adjective, upset, quiet, severe, sad)
14
unexciting(adjective, weak, plain, mild, stupid)
14
weak(adjective, hard, light, simple, soft)
13
irksome(adjective, simple, excite, plain, stupid)
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APASmart Define. (2016). dull thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/dull/thesaurus/synonyms
ChicagoSmart Define. 2016. "dull thesaurus" https://smartdefine.org/dull/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, dull thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/dull/thesaurus/synonyms>.
MLASmart Define. "dull thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/dull/thesaurus/synonyms>