| belief(extraordinary, strange, unbelievable, implausible, unthinkable) |
| fantastic(adjective, extraordinary, strange, foolish, unbelievable) |
| imcomprehensible(extraordinary, strange, unbelievable, implausible, unthinkable) |
| impossible(extraordinary, strange, unbelievable, implausible, unthinkable) |
| improbable(extraordinary, strange, unbelievable, implausible, unthinkable) |
| incogitable(extraordinary, strange, unbelievable, implausible, unthinkable) |
| insupposable(extraordinary, strange, unbelievable, implausible, unthinkable) |
| mind-boggling(extraordinary, strange, unbelievable, implausible, unthinkable) |
| needlessly |
| phony(extraordinary, strange, unbelievable, implausible, unthinkable) |
| rare(extraordinary, strange, unbelievable, implausible, unthinkable) |
| reachy(extraordinary, strange, unbelievable, implausible, unthinkable) |
| staggering(extraordinary, strange, unbelievable, implausible, unthinkable) |
| strange(adjective, extraordinary, foolish, fantastic, unbelievable) |
| unheard-of(extraordinary, strange, unbelievable, implausible, unthinkable) |
| unknowable(extraordinary, strange, unbelievable, implausible, unthinkable) |
| unlikely(extraordinary, strange, unbelievable, implausible, unthinkable) |
| unthinkable(extraordinary, strange, unbelievable, implausible, unimaginable) |
| absurd(adjective, foolish, fantastic, unrealistic) |
| balmy(adjective, foolish, fantastic, unrealistic) |