106 entries under simple topic. ×

9
hackneyed(adjective, moderate, flat, clean)
9
lifeless(adjective, dull, weak, plain)
9
prosy(adjective, dull, flat, plain)
9
unimaginative(adjective, dull, flat, plain)
8
blah(adjective, dull, weak, flat)
8
everyday(adjective, dull, moderate, plain)
7
stale(adjective, dull, flat, clean)
7
trite(adjective, dull, flat, plain)
7
uninspiring(adjective, dull, weak, flat)
6
irksome(adjective, dull, excite, clean)
6
workaday(adjective, dull, plain, common)
5
colorless(adjective, dull, flat, clean)
5
undistinguished(adjective, dull, mean, moderate)
4
general(adjective, moderate, common, ordinary)
4
plain(adjective, dull, weak, flat)
4
prose(noun, adjective, clean, plain)
3
average(adjective, dull, informal, inferior)
3
garden-variety(adjective, dull, moderate, clean)
3
trivial(adjective, mean, lower, obscure)
3
unexceptional(adjective, dull, moderate, clean)
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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>