20
impactful
11
successful
8
fruitful
8
productive(adjective, creative, fruitful)
6
profitable
6
effectual
5
potent
5
fertile(adjective, produce, ready)
4
green
3
useful
3
efficacious
3
efficient
3
plentiful
3
supportive
2
effective(adjective, productive, persuasive)
2
able
2
active
2
advantageous
2
copious
2
creative
<123458>
10 years ago|2.3k views|share |citing 
APASmart Define. (2016). fruitless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/fruitless/thesaurus/antonyms
ChicagoSmart Define. 2016. "fruitless thesaurus" https://smartdefine.org/fruitless/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, fruitless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/fruitless/thesaurus/antonyms>.
MLASmart Define. "fruitless thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/fruitless/thesaurus/antonyms>