| defendable(adjective, attack, sound, reasonable, rational) |
| tenable(adjective, attack, sound, right, reasonable) |
| justifiable(adjective, sound, right, reasonable, slight) |
| supportable(adjective, defended, conceivable, tenable, verbal attack) |
| excusable(adjective, sound, right, reasonable, slight) |
| proper(adjective, reasonable, legal, justified, justifiable) |
| permissible(adjective, reasonable, slight, legal, justified) |
| fit(adjective, reasonable, justified, justifiable) |
| legal(adjective, sound, reasonable, rational, legal) |
| legitimate(adjective, sound, reasonable, rational, legal) |
| maintainable(adjective, sound, reasonable, rational, defended) |
| pardonable(adjective, reasonable, slight, proper, vindication) |
| allowable(adjective, reasonable, slight, proper, understandable) |
| lawful(adjective, sound, reasonable, rational, legal) |
| logical(adjective, sound, reasonable, rational, justified) |
| plausible(adjective, sound, reasonable, rational, vindication) |
| reasonable(adjective, sound, rational, justified, conceivable) |
| venial(adjective, vindication, understandable, pardonable, forgivable) |
| forgivable(adjective, reasonable, slight, proper, understandable) |
| invulnerable(adjective, safety) |