| for the birds(expression, adjective, idiom, extraordinary, dubious) |
| full of holes(expression, adjective, idiom, extraordinary, dubious) |
| harebrained(adjective, extraordinary, amazing, dubious, astonishing) |
| imcomprehensible(adjective, extraordinary, belief, strange, unbelievable) |
| implausible(adjective, extraordinary, strange, amazing, unbelievable) |
| impossible(adjective, extraordinary, strange, amazing, implausible) |
| improbable(adjective, extraordinary, strange, amazing, unbelievable) |
| indescribable(adjective, singular, uncommon) |
| insupposable(adjective, extraordinary, belief, strange, absurd) |
| kooky(adjective, extraordinary, amazing, dubious, astonishing) |
| lamebrained(adjective, extraordinary, amazing, dubious, astonishing) |
| mind-boggling(adjective, extraordinary, strange, amazing, unbelievable) |
| open to doubt(expression, adjective, idiom, extraordinary, dubious) |
| outlandish(adjective, extraordinary, amazing, absurd, implausible) |
| past belief(expression, adjective, extraordinary, amazing, dubious) |
| phony(adjective, extraordinary, strange, amazing, implausible) |
| preposterous(adjective, extraordinary, amazing, absurd, implausible) |
| questionable(adjective, extraordinary, amazing, absurd, implausible) |
| rare(adjective, extraordinary, strange, unbelievable, implausible) |
| reaching(adjective, extraordinary, amazing, dubious, astonishing) |