160 entries under ordinary topic. ×

2
platitudinous(adjective, dull, simple, clean, plain)
2
plebeian(adjective, dull, mean, simple, lower)
2
square(adjective, simple, moderate, clean, plain)
2
standard(adjective, dull, simple, moderate)
2
usual(adjective, dull, moderate, flat, common)
2
vanilla(adjective, dull, weak, simple, clean)
2
watery(adjective, dull, weak, plain, mild)
2
wishy-washy(adjective, dull, weak, plain, mild)
2
worn-out(simple, flat, common, familiar)
2
zero(adjective, dull, weak, simple, lower)
1
abused(adjective, flat, dry, boring)
1
accustomed(adjective, usual, commonplace, conventional)
1
actual(adjective, simple, clean, plain)
1
archaic(adjective, flat, dry, boring)
1
big yawn(expression, adjective, dull, flat)
1
bourgeois(adjective, simple, moderate, familiar)
1
casual(adjective, simple, lower, inferior)
1
characteristic(adjective, simple, familiar, natural)
1
clean(adjective, simple, plain, straightforward)
1
clichéd(common, stupid, usual, routine)
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APASmart Define. (2016). humdrum thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/humdrum/thesaurus/synonyms
ChicagoSmart Define. 2016. "humdrum thesaurus" https://smartdefine.org/humdrum/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, humdrum thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/humdrum/thesaurus/synonyms>.
MLASmart Define. "humdrum thesaurus" 23 March 2016. Web. 29 September 2026. <https://smartdefine.org/humdrum/thesaurus/synonyms>