81 entries under incompetent topic. ×

12
insufficient(adjective, weak, failure, inadequate, feeble)
12
profitless(adjective, poor, base, stupid, inferior)
11
unfit(adjective, weak, appropriate, ready, inadequate)
10
impractical(adjective, stupid, idle, useless, trivial)
10
inoperative(adjective, weak, stupid, idle, useless)
9
unqualified(adjective, weak, poor, inadequate)
7
purposeless(adjective, weak, stupid, idle, useless)
5
hopeless(adjective, stupid, idle, useless, trivial)
5
impracticable(adjective, stupid, idle, useless, trivial)
5
inutile(adjective, poor, base, stupid, inferior)
5
unavailable(adjective, weak, stupid, idle, product)
5
unskilled(adjective, weak, inadequate, feeble)
4
counterproductive(adjective, poor, base, stupid, inferior)
4
effete(adjective, weak, inadequate, inept)
4
faulty(adjective, weak, poor, inadequate, feeble)
4
half-baked(wasteful, unproductive)
4
inexpert(adjective, weak, inadequate, feeble)
4
unworkable(adjective, weak, stupid, idle, useless)
3
crippled(adjective, weak, inadequate, inept)
3
helpless(adjective, weak, inadequate, inept)
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APASmart Define. (2016). ineffective thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/ineffective/thesaurus/synonyms
ChicagoSmart Define. 2016. "ineffective thesaurus" https://smartdefine.org/ineffective/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, ineffective thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/ineffective/thesaurus/synonyms>.
MLASmart Define. "ineffective thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/ineffective/thesaurus/synonyms>