80 entries under lackluster topic. ×

1
lazy(adjective, dull, weak, easy, slow)
1
lifeless(adjective, weary, tired, sluggish, lazy)
1
listless(adjective, dull, weak, easy, slow)
1
meek(adjective, weak, puny, timid)
1
milk-and-water(adjective, dull, weak, plain, mild)
1
moony(adjective, dull, weak, easy, slow)
1
nebbish(adjective, dull, weak, easy, slow)
1
out of gas(expression, adjective, idiom, weak, thin)
1
out of it(expression, adjective, idiom, dull, idle)
1
passive(adjective, dull, indifferent, stupid, weary)
1
phlegmatic(adjective, dull, weak, easy, slow)
1
sapless(adjective, dull, weak, thin, delicate)
1
shoestring(adjective, light, small, insignificant, inadequate)
1
shrimp(adjective, insignificant, unimportant, trivial, minor)
1
sleepy(adjective, dull, slow, relaxed, stupid)
1
sleepyhead(adjective, dull, weak, easy, slow)
1
slothful(adjective, dull, stupid, idle, weary)
1
slow(adjective, dull, weak, easy, relaxed)
1
sluggish(adjective, dull, weak, easy, slow)
1
slumberous(adjective, dull, stupid, idle, weary)
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APASmart Define. (2016). wimpy thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/wimpy/thesaurus/synonyms
ChicagoSmart Define. 2016. "wimpy thesaurus" https://smartdefine.org/wimpy/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, wimpy thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/wimpy/thesaurus/synonyms>.
MLASmart Define. "wimpy thesaurus" 23 March 2016. Web. 28 September 2026. <https://smartdefine.org/wimpy/thesaurus/synonyms>