65 entries under sound topic. ×
| powerful(good, right, reasonable, rational) | |
| received(adjective, correct, right, proper) | |
| rightful(adjective, proper, genuine, accepted) | |
| binding(reasonable, rational) | |
| confirmed(good, right, reasonable, proper) | |
| credible(adjective, good, right, reasonable) | |
| potent(good, right, reasonable, rational) | |
| right(adjective, good, reasonable, fair) | |
| straight(adjective, correct, right, honest) | |
| substantial(good, right, reasonable, rational) | |
| trustworthy(adjective, good, right, reasonable) | |
| weighty(good, right, reasonable, rational) | |
| acknowledged(adjective, correct, right, proper) | |
| efficient(adjective, good, right, reasonable) | |
| just(good, right, reasonable, fair) | |
| justifiable(reasonable, proper, just, valid) | |
| original(good, right, pure, real) | |
| pure(good, right, reasonable, real) | |
| recognised(adjective, correct, proper, straight) | |
| traditional(adjective, right, conventional, accepted) |
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| APA | Smart Define. (2015). official thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/official/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "official thesaurus" https://smartdefine.org/official/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, official thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/official/thesaurus/synonyms>. |
| MLA | Smart Define. "official thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/official/thesaurus/synonyms> |