47 entries under simple topic. ×

18
tedious(adjective, dull, plain, ordinary)
16
dull(adjective, flat, plain, ordinary)
10
humdrum(adjective, dull, clean, plain)
10
monotonous(adjective, dull, plain, ordinary)
9
prosaic(adjective, dull, bad, flat)
8
flat(adjective, dull, weak, smooth)
7
irksome(adjective, dull, clean, plain)
6
blah(adjective, dull, weak, smooth)
6
dead(adjective, dull, flat, clean)
6
dry(adjective, dull, flat, clean)
6
vapid(adjective, dull, flat, clean)
5
pedestrian(adjective, dull, clean, plain)
4
lifeless(adjective, dull, flat, clean)
3
banal(adjective, dull, flat, clean)
3
colorless(adjective, dull, flat, clean)
3
drab(adjective, dull, flat, clean)
3
prosy(adjective, dull, bad, soft)
3
tame(adjective, dull, flat, clean)
3
unimaginative(adjective, dull, flat, plain)
2
nothing(adjective, dull, weak, smooth)
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APASmart Define. (2015). ho-hum thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/ho-hum/thesaurus/synonyms
ChicagoSmart Define. 2015. "ho-hum thesaurus" https://smartdefine.org/ho-hum/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, ho-hum thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/ho-hum/thesaurus/synonyms>.
MLASmart Define. "ho-hum thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/ho-hum/thesaurus/synonyms>