102 entries under boring topic. ×

13
garden-variety(adjective, good, dull, simple, moderate)
12
hackneyed(adjective, dull, set, hard, simple)
12
pedestrian(adjective, dull, set, simple, flat)
12
stale(adjective, dull, set, hard, simple)
11
humdrum(adjective, dull, mean, simple, moderate)
10
dull(adjective, ordinary, commonplace, set)
10
monotonous(adjective, ordinary, dull, flat)
10
mundane(adjective, reasonable, stupid, ordinary, regular)
8
square(noun, adjective, nature, dull, place)
8
tired(adjective, dull, set, hard, flat)
8
uninteresting(adjective, ordinary, dull, flat)
7
insipid(adjective, dull, hard, flat, stupid)
7
uneventful(adjective, dull, simple, plain, ordinary)
7
unimaginative(adjective, dull, simple, flat, plain)
6
tedious(adjective, dull, flat, ordinary)
6
unexciting(adjective, dull, ordinary, modest, dry)
6
uninspiring(adjective, flat, ordinary, dry)
5
flat(noun, adjective, calm, dull, set)
5
jejune(adjective, dull, set, flat, silly)
5
unoriginal(adjective, dull, set, hard, flat)
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APASmart Define. (2016). common thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/common/thesaurus/synonyms
ChicagoSmart Define. 2016. "common thesaurus" https://smartdefine.org/common/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, common thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/common/thesaurus/synonyms>.
MLASmart Define. "common thesaurus" 23 March 2016. Web. 20 September 2026. <https://smartdefine.org/common/thesaurus/synonyms>