1
inculpable(good, excellent, honest, noble, regular)
1
influencing
1
ingenious(keen, smart, intelligent, competent, capable)
1
institutive
1
irreprehensible(good, excellent, honest, noble, regular)
1
keen(sharp, smart, intelligent, competent, capable)
1
know backwards and forwards(expression, keen, smart, intelligent, competent)
1
know the ropes(expression, keen, smart, intelligent, competent)
1
leading
1
learned(keen, smart, intelligent, competent, capable)
1
legally valid(adjective, strong, power, valid, legal)
1
magisterial
1
magnetic
1
masterly(adjective, tough, keen, smart, intelligent)
1
mighty(strong, powerful, dynamic, prevailing, influential)
1
momentous
1
moving(adjective, influential, winning, convincing)
1
nimble-witted(bright, active, wise, sharp-witted, quick-thinking)
1
not in error(expression, idiom)
1
objectively true
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APASmart Define. (2015). effectual thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/effectual/thesaurus/synonyms
ChicagoSmart Define. 2015. "effectual thesaurus" https://smartdefine.org/effectual/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, effectual thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/effectual/thesaurus/synonyms>.
MLASmart Define. "effectual thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/effectual/thesaurus/synonyms>