| reasonable(adjective, stable, defended, verbal attack) |
| acceptable(adjective, stable, defended, verbal attack) |
| admissible(adjective, stable, defended, verbal attack) |
| clinical(adjective, characteristic, quality, objectivity) |
| impersonal(adjective, characteristic, quality, objectivity) |
| neutral(adjective, characteristic, quality, objectivity) |
| nonsubjective(adjective, characteristic, quality, objectivity) |
| rational(adjective, stable, defended, verbal attack) |
| sensible(adjective, stable, defended, verbal attack) |
| allowable(adjective, stable, defended, verbal attack) |
| confirmable(adjective, stable, defended, verbal attack) |
| legitimate(adjective, stable, defended, verbal attack) |
| passable(adjective, stable, defended, verbal attack) |
| provable(adjective, stable, defended, verbal attack) |
| unobjectionable(adjective, stable, defended, verbal attack) |
| viable(adjective, stable, defended, verbal attack) |
| sustainability(adjective, true, real, poise, stability) |
| defensible(adjective, stable) |
| empirical(adjective, stable) |
| justifiable(adjective, stable) |