- Definitions|2
- Thesaurus|876
- Abbreviations|0
41 entries under rational topic. ×
| efficient(adjective, good, power, sound, right) | |
| good(sound, right, reasonable, genuine) | |
| sound(reasonable, sensible, wise, shrewd) | |
| logical(good, sound, right, reasonable) | |
| accurate(sound, reasonable, sensible, wise) | |
| just(adjective, good, sound, right, reasonable) | |
| legal(good, sound, right, reasonable) | |
| right(adjective, good, sound, reasonable, happy) | |
| seasonable(adjective, reasonable, happy, sensible) | |
| true(sound, reasonable) | |
| trustworthy(good, sound, right, reasonable) | |
| attested(good, sound, right, reasonable) | |
| authentic(good, sound, right, reasonable) | |
| binding(sound, reasonable) | |
| bona fide(expression, good, sound, right, reasonable) | |
| conclusive(sound, reasonable, influential, winning) | |
| confirmed(good, sound, right, reasonable) | |
| credible(good, sound, right, reasonable) | |
| defensible(sound, reasonable) | |
| determinative(sound, reasonable) |
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| APA | Smart Define. (2015). efficacious thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/efficacious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "efficacious thesaurus" https://smartdefine.org/efficacious/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, efficacious thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/efficacious/thesaurus/synonyms>. |
| MLA | Smart Define. "efficacious thesaurus" 13 October 2015. Web. 22 September 2026. <https://smartdefine.org/efficacious/thesaurus/synonyms> |