| reasoned(adjective, sound, reasonable, rational, intelligent) |
| recognizable(significant, substantial, definite, considerable, noticeable) |
| serene(adjective, calm, happy, firm, solid) |
| significant(adjective, good, big, substantial, definite) |
| sober-minded(adjective, sane) |
| soft(adjective, reasonable, moderate, easy, ready) |
| substantive(physical, material, actual) |
| suitable(adjective, wise, prudent, opportune, well-timed) |
| tactful(adjective, smooth, intelligent, wise, cautious) |
| unsentimental(adjective, hard, sound, tough, reasonable) |
| viable |
| visible(solid, material, significant, substantial, definite) |
| well-grounded(adjective, reason, sane) |
| admissible(adjective, reasonable, natural, valid, lawful) |
| aesthetic(adjective, understanding, keen, certain, alert) |
| alive to(verb, expression, adjective, phrasal verb, understanding) |
| apprehensible(articulate, possible, believable, silver-tongued, well-spoken) |
| apprised(adjective, understanding, keen, certain, alert) |
| ascertainable(significant, substantial, definite, considerable) |
| believable(adjective, open, sound, honest, solid) |