| not expected(expression, doubtful, unlikely, implausible) |
| not likely(expression, unreasonable, doubtful, dubious, flimsy) |
| open to suspicion(expression, idiom) |
| out of gas(expression, adjective, idiom, weak, thin) |
| outlandish(extraordinary, amazing, unbelievable, implausible, incredible) |
| outside chance(expression, doubtful, dubious, unlikely, implausible) |
| passing belief |
| past belief(expression, extraordinary, amazing, incredible) |
| pathetical |
| phony(extraordinary, strange, amazing, unbelievable, implausible) |
| powerless(adjective, weak, thin, delicate, shaky) |
| problematical |
| puny(adjective, weak, thin, delicate, shaky) |
| rare(extraordinary, strange, doubtful, dubious, unlikely) |
| reachy(extraordinary, strange, unreasonable, dubious, unlikely) |
| sapless(adjective, weak, thin, delicate, shaky) |
| scatterbrained(extraordinary, amazing, incredible) |
| screwy(extraordinary, amazing, incredible) |
| shallow(adjective, flat, poor, thin, small) |
| shoddy |