- Definitions|2
- Thesaurus|1k
- Abbreviations|0
51 entries under sound topic. ×
| confirmed(verb, adjective, reasonable, rational) | |
| authentic(adjective, good, right, reasonable) | |
| true(adjective, reasonable, certain, proper) | |
| good(adjective, reasonable, rational) | |
| right(adjective, good, reasonable, solid) | |
| authoritative(adjective, reasonable, solid, proper) | |
| irrefutable(adjective, reasonable, certain, rational) | |
| strong(adjective, reasonable, rational) | |
| valid(adjective, good, right, reasonable) | |
| well-founded(adjective, reasonable, rational, logical) | |
| conclusive(reasonable, rational) | |
| genuine(adjective, good, right, reasonable) | |
| legal(adjective, reasonable, proper, rational) | |
| legitimate(adjective, reasonable, rational) | |
| solid(adjective, reasonable, proper, rational) | |
| substantial(adjective, reasonable, rational) | |
| trustworthy(adjective, good, right, reasonable) | |
| accurate(adjective, good, set, reasonable) | |
| efficient(reasonable, rational) | |
| justifiable(adjective, reasonable, rational, logical) |
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| APA | Smart Define. (2015). proven thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/proven/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "proven thesaurus" https://smartdefine.org/proven/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, proven thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/proven/thesaurus/synonyms>. |
| MLA | Smart Define. "proven thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/proven/thesaurus/synonyms> |