6
futile(adjective, weak, limited, feeble, useless)
6
hopeless(adjective, weak, sad, unhappy, useless)
6
incommensurate(adjective, poor, short, incompetent, insufficient)
6
inefficacious(adjective, skill, feeble, useless, unfit)
6
inoperative(adjective, limited, feeble, useless, inept)
6
mediocre(adjective, bad, weak, poor, miserable)
6
miserly(adjective, poor, incompetent, insufficient, meager)
6
parsimonious(adjective, poor, incompetent, insufficient, scarce)
6
rotten(adjective, bad, weak, poor, nasty)
6
spineless(adjective, weak, poor, inferior, limited)
6
subpar(adjective, weak, poor, miserable, inferior)
6
too little(expression, adjective, idiom, poor, inferior)
6
unproductive(adjective, weak, slight, poor, thin)
6
unsubstantial(adjective, dull, light, weak, soft)
6
wretched(adjective, mean, bad, moving, poor)
5
crude(adjective, weak, rough, poor, miserable)
5
displeasing(adjective, bad)
5
disproportionate(adjective, inappropriate, unfit, unacceptable, unbecoming)
5
dry(adjective, poor, incompetent, insufficient, deficient)
5
half ass
10 years ago|31k views|share |citing 
APASmart Define. (2016). inadequate thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/inadequate/thesaurus/synonyms
ChicagoSmart Define. 2016. "inadequate thesaurus" https://smartdefine.org/inadequate/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, inadequate thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/inadequate/thesaurus/synonyms>.
MLASmart Define. "inadequate thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/inadequate/thesaurus/synonyms>