| slim(doubtful, unlikely, implausible) |
| slim and none(expression, idiom, doubtful, unlikely, implausible) |
| sneaky(uncertain, shaky, unclear, unlikely, questionable) |
| speculative(uncertain, shaky, unclear, unlikely, questionable) |
| staggering(extraordinary, amazing, incredible) |
| stupid(adjective, foolish, senseless, irrational, arbitrary) |
| subtle |
| thick(extraordinary, amazing, incredible) |
| thin(extraordinary, amazing, unlikely, unbelievable, implausible) |
| thoughtless(adjective, foolish, stupid, senseless, irrational) |
| too much(expression, extraordinary, amazing, unlikely, incredible) |
| touch-and-go(uncertain, shaky, unclear, unlikely, questionable) |
| touch and go(expression, idiom, uncertain, doubtful, unsure) |
| touchy(shaky, unlikely, unpromising) |
| transoceanic(experience, distant, different, unfamiliar, external) |
| trustless(uncertain, doubtful, unsure) |
| unaccustomed(experience, distant, different, unfamiliar, external) |
| unapt(adjective, doubtful) |
| unassured(uncertain, doubtful, unsure) |
| uncertain(doubtful, unclear, unsure, unlikely, questionable) |