Synonyms|448Antonyms|147|Broader|2Narrower|0Related|914

269 entries under adjective topic. ×

3
neutral
3
sombre(dull, lifeless)
3
uninspired(dull, excite, boring, pale)
3
zero(dull, simple, flat, clean)
2
bleached(distressed, worn, colorless, stonewashed)
2
cheerless(blue, sad, depression, woe)
2
cloudy(dull, dark, gloomy, faint)
2
darkish(dull, dark, gloomy, faint)
2
desolate(blue, sad, depression, woe)
2
dusk(dull, dark, gloomy, faint)
2
earthbound(dull, excite)
2
featureless(dull, ordinary, lifeless)
2
gray(dull, dark, gloomy, faint)
2
humdrum(dull, simple, clean, plain)
2
indifferent(dull, flat, low, sad)
2
jejune(dry, boring, tedious, monotonous)
2
lackadaisical(dull, flat, low, sad)
2
laid-back(dull, informal, weary, tired)
2
languid(dull, mean, weak, flat)
2
lightless(dull, dark, gloomy, faint)
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APASmart Define. (2015). lackluster thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/lackluster/thesaurus/synonyms
ChicagoSmart Define. 2015. "lackluster thesaurus" https://smartdefine.org/lackluster/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, lackluster thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/lackluster/thesaurus/synonyms>.
MLASmart Define. "lackluster thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/lackluster/thesaurus/synonyms>