82 entries under reasonable topic. ×
| straight(adjective, good, close, open, correct) | |
| sound(adjective, correct, honest, solid) | |
| unadulterated(adjective, good, sound, simple, right) | |
| creditable(adjective, original, real, genuine) | |
| lawful(adjective, good, sound, correct, right) | |
| well-founded(good, sound, right, rational) | |
| confirmed(adjective, good, sound, right) | |
| incontrovertible(adjective, solid, realistic, absolute) | |
| kosher(noun, adjective, good, open, sound) | |
| legal(adjective, good, sound, correct, right) | |
| aboveboard(honest, acceptable, realistic, reliable) | |
| conclusive(adjective, sound, solid, rational) | |
| determinative(sound, rational) | |
| honest-to-God(adjective, realistic, genuine, satisfying) | |
| irrefutable(sound, material, certain, rational) | |
| just(adjective, good, close, open, sound) | |
| plausible(open, honest, sensible, solid) | |
| presumptive(realistic, satisfying, trustworthy, credible) | |
| telling(sound, solid, rational, realistic) | |
| weighty(good, sound, right, rational) |
For more, visit
Authentic on
Power Thesaurus
| APA | Smart Define. (2016). authentic thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/authentic/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "authentic thesaurus" https://smartdefine.org/authentic/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, authentic thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/authentic/thesaurus/synonyms>. |
| MLA | Smart Define. "authentic thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/authentic/thesaurus/synonyms> |