2
mediocre(adjective, incompetence, dullard)
2
new
2
nonprofessional(adjective, amateur)
2
petty(slight, trivial, frivolous)
2
powerful
2
second-rate
2
shiftless(adjective, weak, careless, feeble, dubious)
2
sloppy(slack, wasteful, unproductive, unprofessional)
2
small(adjective, weak, poor, low, short)
2
spineless(adjective, poor, inferior, inadequate, limited)
2
unavailable(weak, stupid, idle, inadequate, limited)
2
uneconomical(adjective, wasteful, unproductive)
2
unendowed
2
unprofitable(weak, stupid, idle, inadequate, limited)
2
unschooled(inexpert, untrained, amateurish)
2
unserviceable(adjective, useless, unfit, impractical, hopeless)
2
unsuccessful(adjective, weak, inadequate, limited, feeble)
2
unwieldy(adjective, awkward, inept, bulky, ungainly)
2
wasteful(adjective, unproductive)
2
weakly(adjective, adverb, weak, thin, delicate)
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APASmart Define. (2016). incompetent thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/incompetent/thesaurus/synonyms
ChicagoSmart Define. 2016. "incompetent thesaurus" https://smartdefine.org/incompetent/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, incompetent thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/incompetent/thesaurus/synonyms>.
MLASmart Define. "incompetent thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/incompetent/thesaurus/synonyms>