111 entries under tedious topic. ×

8
dreary(adjective, dull, flat, stupid, ordinary)
8
ordinary(adjective, dull, simple, flat, plain)
8
run-of-the-mill(adjective, dull, flat, stupid, ordinary)
8
unexciting(adjective, dull, quiet, flat, slow)
7
tasteless(adjective, dull, hard, weak, cold)
6
tame(adjective, dull, simple, flat, low)
6
drab(adjective, dull, hard, weak, simple)
6
soporific(adjective, flat, stupid, ordinary, dry)
6
weak(adjective, dull, beat, hard, boring)
6
wearisome(adjective, dull, flat, stupid)
6
worn-out(adjective, health, beat, hard, weak)
5
deadly(adjective, quiet, dry, boring)
5
lackluster(adjective, dull, simple, flat, clean)
4
banal(adjective, dull, hard, weak, simple)
4
blah(adjective, dull, quiet, weak, simple)
4
deathlike(thin, boring, pale, wasted)
4
heavy(adjective, dull, flat, stupid, ordinary)
4
plain(adjective, dull, simple, soft, obscure)
4
pointless(adjective, dull, weak, flat, stupid)
4
stupid(adjective, dull, flat, cold, ordinary)
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APASmart Define. (2016). dead thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/dead/thesaurus/synonyms
ChicagoSmart Define. 2016. "dead thesaurus" https://smartdefine.org/dead/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, dead thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/dead/thesaurus/synonyms>.
MLASmart Define. "dead thesaurus" 18 March 2016. Web. 22 September 2026. <https://smartdefine.org/dead/thesaurus/synonyms>