Synonyms|3.2kAntonyms|1.3k|Broader|61Narrower|58Related|3.9k

1,185 entry under adjective topic. ×

8
everyday(simple, plain, pure, common)
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insensate(noun, simple, attitude, slow)
8
lusterless(beat, light, simple, flat)
8
mousy(quiet, gloomy, ordinary, grim)
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passive(calm, flat, careless, indifferent)
8
prolix(loose, dry, boring, tedious)
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repetitious(hard, stupid, dry, boring)
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softened(weak, soft, gentle, mild)
8
thickheaded
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unintelligent(simple, slow, silly, foolish)
8
unsharpened(sharp, round, blunt, altered)
8
usual(ordinary, boring, uninteresting, quiet)
8
wishy-washy(light, weak, soft, plain)
7
pointless(weak, simple, sharp, slow)
7
bald(simplicity, weariness, feebleness)
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bleak(unhappy, dark, gloom, black)
7
deadening
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down(bad, increase, simple, flat)
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exhausting(boring, tedious, irritating, exasperating)
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expressionless(dead, impassive, monotonous, neutral)
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HarvardSmart Define 2016, dull thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/dull/thesaurus/synonyms>.
MLASmart Define. "dull thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/dull/thesaurus/synonyms>