| acceptable(adjective, reasonable, fair, realistic, expected) |
| apprehensible(adjective, possible, believable) |
| calculable(adjective, possible, believable) |
| comprehensible(adjective, possible, believable) |
| creditable(adjective, reasonable, realistic, authentic, satisfying) |
| humanly possible(adjective, idiom, possible) |
| presumable(adjective, reasonable, fair, acceptable, realistic) |
| rational(adjective, reasonable, honest, fair, acceptable) |
| sound(adjective, convincing, believable, plausible) |
| verisimilar(adjective, reasonable, fair, acceptable, expected) |
| achievable(adjective, reasonable, fair, acceptable, expected) |
| admissible |
| anticipated(reasonable, fair, expected, apt, inclined) |
| apt(adjective, reasonable, fair, acceptable, expected) |
| assumable |
| assuring(adjective, reasonable, fair, acceptable, expected) |
| attainable(adjective, reasonable, fair, acceptable, expected) |
| believeable(adjective, reasonable, fair, acceptable, expected) |
| conceivably possible |
| contingent |