89 entries under simple topic. ×

10
common(adjective, ordinary, boring, dull, flat)
10
habitual(adjective, cold, ordinary, familiar)
10
pedestrian(adjective, dull, plain, ordinary)
9
drab(adjective, dull, weak, plain)
9
mundane(adjective, boring, dull, stupid, tedious)
9
stale(adjective, dull, weak, flat)
8
everyday(adjective, dull, plain, ordinary)
8
uneventful(adjective, dull, quiet, soft)
7
colorless(adjective, dull, weak, flat)
7
lifeless(adjective, dull, quiet, weak)
7
tame(adjective, calm, dull, weak)
7
uninspiring(adjective, dull, boring, tedious, uninteresting)
6
blah(adjective, dull, quiet, weak)
6
customary(adjective, regular, ordinary, natural)
6
frequent(adjective, common, ordinary, familiar)
6
stock(adjective, flat, ordinary, familiar)
5
irksome(adjective, dull, excite, plain)
5
prosy(adjective, dull, weak, flat)
5
trite(adjective, dull, flat, plain)
4
average(adjective, reasonable, sensible, restrained)
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APASmart Define. (2015). monotonous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/monotonous/thesaurus/synonyms
ChicagoSmart Define. 2015. "monotonous thesaurus" https://smartdefine.org/monotonous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, monotonous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/monotonous/thesaurus/synonyms>.
MLASmart Define. "monotonous thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/monotonous/thesaurus/synonyms>