47 entries under tough topic. ×

27
profitable(adjective, sensible, energetic, active)
22
effective(adjective, power, energetic, lively)
16
useful(adjective, direct, sensible, energetic)
15
efficacious(adjective, power, energetic, useful)
12
valuable(adjective, sensible, energetic, active)
11
effectual(adjective, power, useful, effective)
8
dynamic(adjective, energetic, active, vital)
8
economic(adjective, energetic, effective, adept)
7
capable(adjective, power, direct, energetic)
7
competent(adjective, power, direct, energetic)
5
able(adjective, power, direct, energetic)
5
clever(adjective, energetic, active, fantastic)
5
energetic(adjective, power, direct, lively)
4
active(adjective, direct, energetic, lively)
4
powerful(adjective, power, direct, energetic)
4
talented(adjective, effective, adept, effectual)
3
equal to(verb, expression, phrasal verb, power)
3
potent(adjective, direct, energetic, lively)
3
proficient(adjective, effective, adept, effectual)
2
economical(energetic, effective, adept, effectual)
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APASmart Define. (2015). productive thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/productive/thesaurus/synonyms
ChicagoSmart Define. 2015. "productive thesaurus" https://smartdefine.org/productive/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, productive thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/productive/thesaurus/synonyms>.
MLASmart Define. "productive thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/productive/thesaurus/synonyms>