186 entries under tedious topic. ×

2
dragging(adjective, slow, heavy, boring)
2
ghastly(adjective, light, soft, flat, poor)
2
ho hum(expression, adjective, weak, plain, mild)
2
long(adjective, slow, loose, endless)
2
mind-numbing(adjective, dry, boring, dreary)
2
moth-eaten(adjective, set, hard, flat, silly)
2
nothing(adjective, weak, simple, flat, plain)
2
nowhere(adjective, weak, simple, flat, plain)
2
overlong
2
protracted(adjective, slow, late, endless)
2
sorry(boring, lowly, unskilled, relieved)
2
tough(noun, adjective, nasty, unpleasant, boring)
2
treadmill(adjective, boring, routine, dreary)
2
unstimulating(adjective, weak, plain, mild, boring)
2
vanilla(adjective, weak, simple, flat, plain)
2
well-worn(adjective, set, hard, flat, silly)
2
zero(adjective, weak, simple, flat, low)
1
annoying(adjective, boring, dreary, monotonous)
1
arduous(adjective, boring, irritating, annoying)
1
bit much(expression, irritating, annoying, exasperating)
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APASmart Define. (2016). dull thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/dull/thesaurus/synonyms
ChicagoSmart Define. 2016. "dull thesaurus" https://smartdefine.org/dull/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, dull thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/dull/thesaurus/synonyms>.
MLASmart Define. "dull thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/dull/thesaurus/synonyms>