53 entries under rational topic. ×
| valid(adjective, sound, right, reasonable, severe) | |
| stringent(adjective, sound, reasonable, severe) | |
| legal(adjective, sound, reasonable) | |
| authoritative(adjective, sound, reasonable, unconditional) | |
| cogent(sound, reasonable) | |
| compelling(verb, adjective, sound, reasonable, severe) | |
| good(sound, reasonable) | |
| sound(reasonable, certain, true, definite) | |
| conclusive(adjective, set, sound, reasonable) | |
| just(sound, reasonable) | |
| lawful(sound, reasonable) | |
| legitimate(sound, reasonable) | |
| logical(sound, reasonable) | |
| official(sound, reasonable) | |
| solid(sound, reasonable) | |
| substantial(sound, reasonable) | |
| ultimate(sound, reasonable) | |
| weighty(sound, reasonable) | |
| well-founded(sound, reasonable) | |
| well-grounded(sound, reasonable) |
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| APA | Smart Define. (2015). binding thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/binding/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "binding thesaurus" https://smartdefine.org/binding/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, binding thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/binding/thesaurus/synonyms>. |
| MLA | Smart Define. "binding thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/binding/thesaurus/synonyms> |