| satisfying(reasonable, solid, realistic, authentic, trustworthy) |
| smooth(reasonable, credible) |
| so-called |
| solid(reasonable, realistic, persuasive, credible) |
| sophistic |
| sound(reasonable, solid, realistic, persuasive, credible) |
| straight(reasonable, realistic, authentic, satisfying, trustworthy) |
| swaying(reasonable, solid, realistic, persuasive, credible) |
| taken for granted(adjective, idiom, belief, likely) |
| telling(reasonable, solid, realistic, persuasive, credible) |
| tenable(reasonable, realistic, authentic, satisfying, trustworthy) |
| theoretic |
| theoretical |
| to be expected(expression, idiom, expected, possible, probable) |
| tried(reasonable, realistic, authentic, satisfying, trustworthy) |
| true to life(expression, idiom, realistic, authentic, credible) |
| trustworthy(reasonable, solid, realistic, authentic, satisfying) |
| trusty(reasonable, solid, realistic, authentic, satisfying) |
| up and coming(expression, idiom, reasonable, fair, apt) |
| up front(expression, reasonable, realistic, authentic, satisfying) |