66 entries under stupid topic. ×

9
tame(adjective, dull, weak, flat, plain)
8
drab(adjective, dull, weak, boring)
8
stodgy(adjective, dull, flat, warm, heavy)
8
stuffy(adjective, dull, flat, excite, warm)
7
colorless(adjective, dull, weak, flat, common)
6
trite(adjective, dull, simple, flat, common)
5
repetitious(adjective, dull, flat, ordinary)
5
spiritless(adjective, dull, weak, flat, cold)
4
characterless(adjective, dull, common, ordinary)
3
unvaried(adjective, dull, flat, ordinary)
2
bromidic(adjective, dull, simple, flat)
2
ho hum(expression, adjective, dull, weak, simple)
2
nothing(adjective, dull, weak, plain, mild)
2
nowhere(adjective, dull, weak, flat)
2
plebeian(adjective, dull, common, ordinary)
1
around in circles(expression, adjective, idiom, silly)
1
bomb(adjective, dull, flat, dry)
1
bummer(adjective, dull, flat, dry)
1
cloying(adjective, dull, flat, dry)
1
drag(adjective, dull, boring, tedious)
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APASmart Define. (2016). uninteresting thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/uninteresting/thesaurus/synonyms
ChicagoSmart Define. 2016. "uninteresting thesaurus" https://smartdefine.org/uninteresting/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, uninteresting thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/uninteresting/thesaurus/synonyms>.
MLASmart Define. "uninteresting thesaurus" 23 March 2016. Web. 1 October 2026. <https://smartdefine.org/uninteresting/thesaurus/synonyms>