41 entries under tough topic. ×

1
energetic(adjective, strong, sharp, effective)
1
experienced(keen, smart, intelligent, expert)
1
expert(adjective, keen, smart, intelligent)
1
good for(expression, useful, effective, beneficial)
1
masterly(adjective, keen, smart, intelligent)
1
practiced(keen, smart, intelligent, expert)
1
ready(bright, prompt, quick, competent)
1
shrewd(bright, effective, adept, sharp-witted)
1
skilled(adjective, keen, smart, intelligent)
1
skillful(keen, smart, bright, intelligent)
1
talented(adjective, keen, smart, intelligent)
0
adapted(effective, adept, well-organized)
0
businesslike(effective, adept, well-organized)
0
economical(effective, adept, well-organized)
0
familiar with(expression, effective, adept, well-organized)
0
fitted(competent, capable, effective, proficient)
0
good at(expression, effective, adept, well-organized)
0
organized(effective, adept, well-organized)
0
saving(effective, adept, well-organized)
0
systematic(effective, adept, well-organized)
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APASmart Define. (2015). effectual thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/effectual/thesaurus/synonyms
ChicagoSmart Define. 2015. "effectual thesaurus" https://smartdefine.org/effectual/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, effectual thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/effectual/thesaurus/synonyms>.
MLASmart Define. "effectual thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/effectual/thesaurus/synonyms>