180 entries under adjective topic. ×

32
futile(weak, flat, sad, unhappy)
28
vain(weak, flat, sad, unhappy)
27
useless(weak, flat, failure, inferior)
24
unproductive(weak, flat, silly, stupid)
24
bootless(failure, stupid, idle, inadequate)
24
unavailing(weak, failure, silly, stupid)
22
ineffective(weak, failure, silly, stupid)
22
pointless(idle, product, useless, trivial)
22
unfruitful(inferior, inadequate, limited, product)
21
ineffectual(weak, failure, silly, stupid)
21
unprofitable(flat, silly, stupid, inadequate)
21
abortive(failure, stupid, idle, inadequate)
19
barren(inferior, inadequate, limited, product)
19
unsuccessful(weak, inferior, inadequate, limited)
16
profitless(stupid, idle, product, useless)
15
sterile(noun, clean, product, useless)
14
empty(product, useless, trivial, bleak)
14
idle(weak, stupid, inadequate, limited)
13
worthless(stupid, inadequate, limited, feeble)
11
inefficacious(inferior, inadequate, useless, trivial)
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APASmart Define. (2016). fruitless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/fruitless/thesaurus/synonyms
ChicagoSmart Define. 2016. "fruitless thesaurus" https://smartdefine.org/fruitless/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, fruitless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/fruitless/thesaurus/synonyms>.
MLASmart Define. "fruitless thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/fruitless/thesaurus/synonyms>