- Definitions|2
- Thesaurus|876
- Abbreviations|0
115 entries under effective topic. ×
| compelling(adjective, strong, sound, reasonable, energetic) | |
| energetic(adjective, strong, tough, vigorous, capable) | |
| forcible(adjective, strong, energetic, important, powerful) | |
| important(adjective, strong, powerful, significant, useful) | |
| substantial(adjective, good, strong, sound, right) | |
| equal to(verb, expression, phrasal verb, power, tough) | |
| proficient(adjective, tough, adept, effectual) | |
| significant(adjective, strong, important, powerful, useful) | |
| dominant(adjective, strong, energetic, important, powerful) | |
| dynamic(adjective, strong, tough, energetic, powerful) | |
| economic(adjective, tough, energetic, adept) | |
| functioning(moving, active, running, alive) | |
| impelling(moving, active, running, alive) | |
| mighty(strong, powerful, chief, principal) | |
| sovereign(adjective, strong, energetic, vigorous, capable) | |
| valuable(tough, energetic, useful, beneficial) | |
| advantageous(adjective, strong, happy, useful, valuable) | |
| all-powerful(strong, energetic, vigorous, capable, chief) | |
| apt(adjective, tough, happy, energetic, active) | |
| astir(moving, active, running, alive) |
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| APA | Smart Define. (2015). efficacious thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/efficacious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "efficacious thesaurus" https://smartdefine.org/efficacious/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, efficacious thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/efficacious/thesaurus/synonyms>. |
| MLA | Smart Define. "efficacious thesaurus" 13 October 2015. Web. 23 September 2026. <https://smartdefine.org/efficacious/thesaurus/synonyms> |