6
inferior(inadequate, limited, feeble, useless, vain)
6
unskilful
6
worthless(adjective, weak, stupid, idle, inadequate)
5
bad(adjective, useless, unfit)
5
gauche(adjective, awkward, inept, clumsy, bulky)
5
imperfect(weak, poor, inadequate, insufficient, deficient)
5
inappropriate(adjective, unreasonable, useless, improper, unfit)
5
incapacitated(adjective, weak, skill, inadequate, useless)
5
poor(adjective, weak, thin, delicate, short)
5
primitive(adjective, educated, overall, well-informed, amateur)
5
unapt(adjective, useless, unfit, unqualified, inept)
5
unsuitable(adjective, useless, immoral, improper, unfit)
5
untrained(adjective, weak, poor, inadequate, useless)
5
unworkmanlike(adjective, ability, inefficient)
4
raw(adjective, poor, inadequate, useless, inept)
4
artless(clumsy, inexpert, inelegant, graceless)
4
bumbling(adjective, awkward, inept, clumsy, bulky)
4
butterfingered(awkward, inept, bulky, ungainly)
4
crude(adjective, awkward, sloppy, inept, bulky)
4
defective(poor, inadequate, insufficient, deficient, scarce)
10 years ago|22k views|share |citing 
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>