65 entries under incompetent topic. ×

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bush league(expression, unqualified, inept, unable)
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butter-fingered(unqualified, inept, unable, unprepared)
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careless(wasteful, unproductive)
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disorganized(wasteful, unproductive)
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extravagant(wasteful, unproductive)
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faulty(wasteful, unproductive)
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half-baked(wasteful, unproductive)
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halting(clumsy, inexpert)
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improficient(wasteful, unproductive)
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improvident(wasteful, unproductive)
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incapacitated(adjective, inadequate, useless, unqualified)
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loser(clumsy, inexpert)
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maladjusted(unqualified, inept, unable, unprepared)
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no good(expression, unqualified, inept, unable)
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not ready(expression, unqualified, inept, unable)
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prodigal(wasteful, unproductive)
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shooting blanks(expression, wasteful, unproductive)
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slack(wasteful, unproductive)
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slipshod(sloppy, wasteful, unproductive, unprofessional)
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sloppy(wasteful, unproductive, unprofessional)
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APASmart Define. (2016). unskillful thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unskillful/thesaurus/synonyms
ChicagoSmart Define. 2016. "unskillful thesaurus" https://smartdefine.org/unskillful/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, unskillful thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unskillful/thesaurus/synonyms>.
MLASmart Define. "unskillful thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/unskillful/thesaurus/synonyms>