48 entries under plain topic. ×

15
dull(adjective, weak, simple, tough)
15
prosaic(adjective, dull, bad, weak, simple)
13
flat(adjective, dull, simple, tough)
12
pedestrian(noun, adjective, dull, mean, simple)
9
humdrum(adjective, dull, simple, flat)
9
prose(adjective, simple, flat, clean)
9
tedious(adjective, dull, weak, simple, flat)
8
vapid(adjective, dull, weak, simple, flat)
7
banal(adjective, dull, weak, simple, clean)
7
dry(adjective, dull, simple, tough, flat)
6
commonplace(adjective, dull, simple, flat)
6
drab(adjective, dull, weak, simple)
6
lifeless(adjective, dull, weak, simple, tough)
6
monotonous(adjective, dull, weak, simple, flat)
5
boring(adjective, dull, weak, simple, flat)
5
colorless(adjective, dull, mean, weak, simple)
4
common(adjective, dull, simple, flat, rough)
4
unimaginative(adjective, dull, simple, tough, flat)
3
ho-hum(adjective, dull, bad, simple, soft)
3
stale(adjective, dull, mean, weak, simple)
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APASmart Define. (2015). prosy thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/prosy/thesaurus/synonyms
ChicagoSmart Define. 2015. "prosy thesaurus" https://smartdefine.org/prosy/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, prosy thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/prosy/thesaurus/synonyms>.
MLASmart Define. "prosy thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/prosy/thesaurus/synonyms>