94 entries under flat topic. ×

8
innocuous(adjective, good, dull, weak, simple)
7
colorless(adjective, dull, weak, ordinary)
7
commonplace(adjective, dull, set, silly)
7
heavy(adjective, dull, quiet, stupid)
7
prosy(adjective, dull, weak, stupid)
7
tame(adjective, dull, kind, soft, gentle)
6
blah(adjective, dull, weak, ordinary)
6
flavorless(adjective, dull, weak, boring)
6
ordinary(adjective, dull, set, silly)
6
pointless(adjective, dull, weak, silly)
6
spiritless(adjective, calm, dull, weak, kind)
6
unimaginative(adjective, dull, stupid, ordinary)
6
watery(adjective, good, dull, weak)
5
common(adjective, dull, set, silly)
5
mild(adjective, dull, kind, soft, pleasant)
5
plain(adjective, dull, simple, stupid)
5
routine(adjective, dull, set, silly)
5
stock(adjective, dull, set, silly)
5
stupid(adjective, dull, slow, silly)
5
tired(adjective, dull, set, silly)
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APASmart Define. (2015). jejune thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/jejune/thesaurus/synonyms
ChicagoSmart Define. 2015. "jejune thesaurus" https://smartdefine.org/jejune/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, jejune thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/jejune/thesaurus/synonyms>.
MLASmart Define. "jejune thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/jejune/thesaurus/synonyms>