125 entries under ordinary topic. ×

10
pedestrian(adjective, dull, set, mean, simple)
10
prosaic(adjective, dull, set, weak, simple)
10
stock(adjective, dull, set, flat, silly)
10
tedious(adjective, dull, weak, simple, flat)
9
corny(adjective, dull, set, hard, flat)
9
monotonous(adjective, dull, weak, simple, flat)
8
old hat(expression, adjective, dull, set, flat)
7
bland(adjective, dull, weak, flat, stupid)
7
bromidic(adjective, dull, set, flat, excite)
7
lifeless(adjective, dull, quiet, weak, simple)
7
platitudinous(adjective, dull, set, hard, simple)
7
run-of-the-mill(adjective, dull, set, flat, silly)
6
clichéd(adjective, dull, set, beat, hard)
6
unimaginative(adjective, dull, simple, flat, plain)
6
watery(adjective, dull, hard, weak, flat)
5
archaic(adjective, flat, dry, last)
5
dreary(adjective, dull, flat, warm)
5
familiar(adjective, flat, common, dry)
5
plain(adjective, dull, weak, simple, flat)
5
routine(adjective, dull, set, simple, flat)
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APASmart Define. (2015). stale thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/stale/thesaurus/synonyms
ChicagoSmart Define. 2015. "stale thesaurus" https://smartdefine.org/stale/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, stale thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/stale/thesaurus/synonyms>.
MLASmart Define. "stale thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/stale/thesaurus/synonyms>