65 entries under sound topic. ×
| authoritative(adjective, good, correct, right) | |
| established(adjective, proper, customary, accepted) | |
| sanctioned(adjective, proper, true, accepted) | |
| legitimate(adjective, right, proper, straight) | |
| proper(adjective, customary, accepted, traditional) | |
| true(adjective, honest, proper, straight) | |
| legal(adjective, good, correct, right) | |
| approved(adjective, proper, accepted, traditional) | |
| recognized(adjective, correct, right, proper) | |
| accepted(adjective, correct, right, honest) | |
| lawful(adjective, good, correct, right) | |
| canonical(adjective, proper, reliable, accepted) | |
| customary(adjective, correct, right, proper) | |
| correct(adjective, right, proper, accepted) | |
| genuine(adjective, good, honest, true) | |
| conclusive(adjective, reasonable, true, rational) | |
| conventional(adjective, right, accepted, traditional) | |
| accurate(adjective, honest, pure, true) | |
| good(right, reasonable, honest, pure) | |
| irrefutable(adjective, reasonable, rational, reliable) |
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| APA | Smart Define. (2015). official thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/official/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "official thesaurus" https://smartdefine.org/official/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, official thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/official/thesaurus/synonyms>. |
| MLA | Smart Define. "official thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/official/thesaurus/synonyms> |