148 entries under tedious topic. ×

48
boring(adjective, dull, weak, simple, flat)
36
dull(adjective, weak, simple, excite, slow)
34
monotonous(adjective, dull, weak, simple, flat)
31
tiresome(adjective, dull, flat, excite, slow)
29
uninteresting(adjective, dull, weak, flat, excite)
26
prosaic(adjective, dull, weak, simple, moderate)
24
commonplace(adjective, dull, mean, simple, moderate)
22
dreary(adjective, dull, flat, excite, gloomy)
20
wearisome(adjective, dull, weak, excite, slow)
19
insipid(adjective, dull, weak, flat, plain)
17
dry(adjective, dull, simple, flat, excite)
17
flat(adjective, dull, weak, simple, plain)
15
ordinary(adjective, dull, simple, moderate, lower)
15
tame(adjective, dull, weak, simple, flat)
14
banal(adjective, dull, weak, simple, clean)
14
mundane(adjective, dull, simple, plain, informal)
14
pedestrian(noun, adjective, dull, simple, moderate)
14
unexciting(adjective, dull, weak, plain, informal)
13
vapid(adjective, dull, weak, simple, flat)
13
slow(adjective, dull, boring, dullness)
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APASmart Define. (2016). humdrum thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/humdrum/thesaurus/synonyms
ChicagoSmart Define. 2016. "humdrum thesaurus" https://smartdefine.org/humdrum/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, humdrum thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/humdrum/thesaurus/synonyms>.
MLASmart Define. "humdrum thesaurus" 23 March 2016. Web. 23 September 2026. <https://smartdefine.org/humdrum/thesaurus/synonyms>