75 entries under sound topic. ×
| trustworthy(adjective, good, clear, right) | |
| weighty(adjective, clear, right, reasonable) | |
| well-founded(adjective, good, right, reasonable) | |
| confirmed(adjective, right, reasonable, rational) | |
| well-grounded(adjective, good, right, reasonable) | |
| compelling(adjective, clear, direct, right) | |
| irrefutable(adjective, clear, right, reasonable) | |
| binding(adjective, characteristic, right, reasonable) | |
| rational(adjective, reasonable, sensible, proper) | |
| attested(adjective, right, reasonable, rational) | |
| conclusive(adjective, clear, right, reasonable) | |
| fair(adjective, good, clear, correct) | |
| legit(adjective, good, clear, open, direct) | |
| original(adjective, quality, right, reasonable) | |
| efficient(adjective, power, right, reasonable) | |
| wise(clear, reasonable, sensible, rational) | |
| commonsensical(clear, reasonable, sensible, rational) | |
| pertinent(adjective, clear, reasonable, sensible) | |
| relevant(adjective, clear, reasonable, appropriate) | |
| unadulterated(adjective, right, reasonable, pure) |
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| APA | Smart Define. (2016). valid thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/valid/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "valid thesaurus" https://smartdefine.org/valid/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, valid thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/valid/thesaurus/synonyms>. |
| MLA | Smart Define. "valid thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/valid/thesaurus/synonyms> |