164 entries under adjective topic. ×

4
careless(casual, extravagant, incompetent, lavish)
4
ineffective(incompetent, unproductive)
4
intemperate(free, careless, wild, grand)
4
overgenerous(extravagant, lavish, excessive, profligate)
4
uneconomic
4
unproductive(slow, incompetent)
4
useless(incompetent, unproductive)
3
liberal(grand, extravagant, generous, lavish)
3
consumptive
3
dissipative(extravagant, lavish, economical, thriftless)
3
incompetent
3
indulgent(excessive, expensive, steep, high-priced)
3
opulent(grand, extravagant, generous, abundant)
3
wanton(free, careless, wild, extravagant)
2
exorbitant(unreasonable, extravagant, ridiculous, excessive)
2
extreme(unreasonable, extravagant, ridiculous, excessive)
2
fruitless
2
futile
2
imprudent(careless, indifferent, casual, thoughtless)
2
inadequate
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APASmart Define. (2016). wasteful thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/wasteful/thesaurus/synonyms
ChicagoSmart Define. 2016. "wasteful thesaurus" https://smartdefine.org/wasteful/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, wasteful thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/wasteful/thesaurus/synonyms>.
MLASmart Define. "wasteful thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/wasteful/thesaurus/synonyms>