21 entries under wasteful topic. ×

10
inefficient(adjective, weak, skill, inferior, affect)
3
feeble(adjective, inadequate, useless, incompetent, vain)
2
unskillful(incompetent, unproductive, inutility)
0
bungling(incompetent, unproductive)
0
careless(incompetent, unproductive)
0
disorganized(incompetent, unproductive)
0
extravagant(incompetent, unproductive)
0
faulty(incompetent, unproductive)
0
half-baked(incompetent, unproductive)
0
improficient(incompetent, unproductive)
0
improvident(incompetent, unproductive)
0
inexpert(incompetent, unproductive)
0
prodigal(incompetent, unproductive)
0
shooting blanks(expression, incompetent, unproductive)
0
slack(incompetent, unproductive)
0
slipshod(incompetent, unproductive)
0
sloppy(incompetent, unproductive)
0
slovenly(incompetent, unproductive)
0
uneconomical(incompetent, unproductive)
0
unprepared(incompetent, unproductive)
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APASmart Define. (2016). inefficacious thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/inefficacious/thesaurus/synonyms
ChicagoSmart Define. 2016. "inefficacious thesaurus" https://smartdefine.org/inefficacious/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, inefficacious thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/inefficacious/thesaurus/synonyms>.
MLASmart Define. "inefficacious thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/inefficacious/thesaurus/synonyms>