| Clue | Length | Answer |
|---|---|---|
| Open to question | 4 letters | moot |
| Open to question | 5 letters | shaky |
| Open to question | 7 letters | indoubt |
| Open to question | 7 letters | suspect |
| Open to question | 8 letters | arguable |
| Open to question | 8 letters | in-doubt |
| Open to question | 9 letters | dubitable |
| Open to question | 9 letters | refutable |
| Open to question | 9 letters | debatable |
| Open to question | 10 letters | suspicious |
| Open to question | 10 letters | unresolved |
| Open to question | 11 letters | speculative |
| Open to question | 11 letters | problematic |
| Open to question | 12 letters | questionable |
| Open to question | 13 letters | suppositional |
| Open to question | 13 letters | problematical |
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