3
prose(adjective, simple, flat, clean, plain)
3
prosy(adjective, dull, weak, simple, flat)
3
stock(adjective, dull, flat, ordinary, dry)
3
unpalatable(adjective, dull, weak, flat, dead)
2
boresome(adjective, dull, tired, disagreeable, tedious)
2
bothersome(adjective, irritating, annoying)
2
dingy(adjective, dull, gloomy, miserable, tedious)
2
discouraging(adjective, dull, gloomy, miserable)
2
distasteful(adjective, dull, weak, flat, bland)
2
dull as dishwater(expression, adjective, idiom, dull, weak)
2
endless(adjective, dull, tedious, dreary, incessant)
2
factual(adjective, simple, clean, plain, ordinary)
2
familiar(adjective, dull, flat, ordinary, dry)
2
garden-variety(adjective, dull, simple, flat, clean)
2
homely(adjective, dull, plain, ordinary, tacky)
2
inactive(adjective, dull, quiet, flat, slow)
2
lusterless(adjective, dull, simple, flat, clean)
2
monochromatic(adjective, dreary, drab, colorless, arid)
1
afflicting(adjective, feeling, boredom)
1
anaemic(adjective, feeling, boredom)
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APASmart Define. (2016). boring thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/boring/thesaurus/synonyms
ChicagoSmart Define. 2016. "boring thesaurus" https://smartdefine.org/boring/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, boring thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/boring/thesaurus/synonyms>.
MLASmart Define. "boring thesaurus" 30 March 2016. Web. 20 September 2026. <https://smartdefine.org/boring/thesaurus/synonyms>