Synonyms|412Antonyms|83|Broader|4Narrower|1Related|376

65 entries under strong topic. ×

4
compelling(adjective, sound, reasonable, energetic)
4
energetic(adjective, tough, vigorous, capable)
4
forcible(adjective, energetic, important, powerful)
4
important(adjective, powerful, significant, useful)
4
substantial(adjective, good, sound, right)
3
in force(adjective, power, valid, legal)
3
power(energetic, active, vigorous, controlling)
3
significant(adjective, important, powerful, useful)
2
almighty(power, energetic, powerful, vigorous)
2
available(adjective, power, valid, legal)
2
dominant(adjective, energetic, important, powerful)
2
dynamic(adjective, tough, energetic, powerful)
2
mighty(powerful, chief, effective, principal)
2
sovereign(adjective, energetic, vigorous, capable)
1
advantageous(adjective, happy, useful, valuable)
1
all-powerful(energetic, vigorous, capable, chief)
1
auspicious(adjective, happy, positive, fortunate)
1
commanding(energetic, powerful, effective, independent)
1
controlling(adjective, energetic, important, powerful)
1
favorable(adjective, friendly, happy, useful)
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APASmart Define. (2015). efficacious thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/efficacious/thesaurus/synonyms
ChicagoSmart Define. 2015. "efficacious thesaurus" https://smartdefine.org/efficacious/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, efficacious thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/efficacious/thesaurus/synonyms>.
MLASmart Define. "efficacious thesaurus" 13 October 2015. Web. 22 September 2026. <https://smartdefine.org/efficacious/thesaurus/synonyms>