| reasonable(adjective, sound, slight, honest, sensible) |
| believable(adjective, sound, reasonable, sensible, rational) |
| defendable(adjective, attack, sound, reasonable, rational) |
| maintainable(adjective, sound, reasonable, rational, defended) |
| supportable(adjective, defended, conceivable, verbal attack) |
| conceivable(adjective, reasonable, realistic, authentic, satisfying) |
| rational(adjective, sound, reasonable, honest, sensible) |
| sustainable |
| excusable(adjective, sound, right, reasonable, rational) |
| imaginable(adjective, reasonable, realistic, authentic, satisfying) |
| possible(adjective, reasonable, realistic, authentic, satisfying) |
| likely(adjective, reasonable, realistic, authentic, satisfying) |
| sensible(adjective, sound, rational, intelligent, sober) |
| thinkable(adjective, convincing, believable, plausible) |
| well-founded(adjective, reasonable, justified, defensible) |
| acceptable(adjective, sound, reasonable, rational, realistic) |
| admissible(adjective, reasonable, justified, defensible) |
| arguable(adjective, sound, reasonable, sensible, rational) |
| trustworthy(adjective, sound, reasonable, rational, realistic) |
| creditable(adjective, reasonable, realistic, authentic, satisfying) |