| sequential(running, logical, indirect, consecutive, resultant) |
| slight(adjective, reasonable, allowable, justifiable, explicable) |
| sound(reasonable, moderate, honest, proper, logical) |
| spelled out(expression, simple, sharp, distinct, well-defined) |
| standing to reason(expression, adjective, idiom, honest, fair) |
| successive(running, logical, indirect, consecutive, resultant) |
| sympathetic |
| temperate(adjective, reasonable, slight, honest, fair) |
| tenable(reasonable, justified, defensible) |
| tolerable(adjective, reasonable, slight, moderate, honest) |
| transpicuous(simple, sharp, distinct, articulate, silver-tongued) |
| trivial(adjective, reasonable, slight, allowable, justifiable) |
| unblurred(simple, sharp, distinct, articulate, silver-tongued) |
| understandably |
| unexcessive(adjective, moderate, honest, fair, proper) |
| unextreme(adjective, moderate, honest, fair, proper) |
| user-friendly(adjective, comprehensible) |
| valid(adjective, reasonable, moderate, honest, fair) |
| vindicable(reasonable, justified, defensible) |
| warrantable(reasonable, justified, defensible) |